Prerequisite

Linux program

R-base build-essential

R Packages

|package|Function| |…….|……..| |arules|provides the infrastructure for representing, manipulating, and analyzing transaction data and patterns.| |arulesViz|package is used for visualizing Association Rules and Frequent Itemsets. It extends the package arules with various visualization techniques for association rules and itemsets. The package also includes several interactive visualizations for rule exploration.| |RColorBrewer|ColorBrewer Palette which provides color schemes for maps and other graphics.|

devtools::install_github("mhahsler/arulesViz") to install aruleViz library

library(arules)
## Loading required package: Matrix
## 
## Attaching package: 'arules'
## The following objects are masked from 'package:base':
## 
##     abbreviate, write
library(arulesViz)
library(RColorBrewer)

#Assosiation Mining Rule ## Apriori Mining rule

Load Dataset

#data_set = read.csv('dataset.csv')
trans<-read.transactions(file='dataset.csv', format="basket", sep="," ,header= TRUE)
inspect(head(trans,3))
##     items                 
## [1] {dischromic _patches, 
##      Fungal infection,    
##      itching,             
##      nodal_skin_eruptions,
##      skin_rash}           
## [2] {dischromic _patches, 
##      Fungal infection,    
##      nodal_skin_eruptions,
##      skin_rash}           
## [3] {dischromic _patches, 
##      Fungal infection,    
##      itching,             
##      nodal_skin_eruptions}

Applying apriori() function

#rules <- apriori(trans, parameter = list(supp = 0.0001, conf = 0.5))
rules<-apriori(trans,parameter=list(support=0.06, confidence=0.5,minlen=3,maxlen=6)) 
## Apriori
## 
## Parameter specification:
##  confidence minval smax arem  aval originalSupport maxtime support minlen
##         0.5    0.1    1 none FALSE            TRUE       5    0.06      3
##  maxlen target  ext
##       6  rules TRUE
## 
## Algorithmic control:
##  filter tree heap memopt load sort verbose
##     0.1 TRUE TRUE  FALSE TRUE    2    TRUE
## 
## Absolute minimum support count: 295 
## 
## set item appearances ...[0 item(s)] done [0.00s].
## set transactions ...[172 item(s), 4920 transaction(s)] done [0.00s].
## sorting and recoding items ... [31 item(s)] done [0.00s].
## creating transaction tree ... done [0.00s].
## checking subsets of size 1 2 3 4 5 6
## Warning in apriori(trans, parameter = list(support = 0.06, confidence = 0.5, :
## Mining stopped (maxlen reached). Only patterns up to a length of 6 returned!
##  done [0.00s].
## writing ... [916 rule(s)] done [0.00s].
## creating S4 object  ... done [0.00s].

Applying inspect() function

inspect(rules[20:30])
##      lhs                    rhs          support    confidence coverage  
## [1]  {chills,phlegm}     => {cough}      0.06463415 0.9464286  0.06829268
## [2]  {chills,cough}      => {phlegm}     0.06463415 0.9814815  0.06585366
## [3]  {cough,phlegm}      => {malaise}    0.06585366 0.9642857  0.06829268
## [4]  {malaise,phlegm}    => {cough}      0.06585366 0.9473684  0.06951220
## [5]  {cough,malaise}     => {phlegm}     0.06585366 0.9818182  0.06707317
## [6]  {cough,phlegm}      => {high_fever} 0.06463415 0.9464286  0.06829268
## [7]  {high_fever,phlegm} => {cough}      0.06463415 0.9464286  0.06829268
## [8]  {cough,high_fever}  => {phlegm}     0.06463415 0.7464789  0.08658537
## [9]  {cough,phlegm}      => {fatigue}    0.06463415 0.9464286  0.06829268
## [10] {fatigue,phlegm}    => {cough}      0.06463415 0.9464286  0.06829268
## [11] {cough,fatigue}     => {phlegm}     0.06463415 0.7571429  0.08536585
##      lift      count
## [1]   8.256079 318  
## [2]  13.640929 318  
## [3]   6.758242 324  
## [4]   8.264278 324  
## [5]  13.645609 324  
## [6]   3.418817 318  
## [7]   8.256079 318  
## [8]  10.374791 318  
## [9]   2.410160 318  
## [10]  8.256079 318  
## [11] 10.523002 318

Using itemFrequencyPlot() function

arules::itemFrequencyPlot(trans, topN = 20, 
                          col = brewer.pal(8, 'Pastel2'),
                          main = 'Relative Item Frequency Plot',
                          type = "relative",
                          ylab = "Item Frequency (Relative)")

sorted_rules = sort(rules, by="support", decreasing = TRUE)
inspect(sorted_rules)
##       lhs                      rhs                      support confidence   coverage      lift count
## [1]   {yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.12804878  0.9545455 0.13414634  4.076705   630
## [2]   {loss_of_appetite,                                                                             
##        yellowish_skin}      => {yellowing_of_eyes}   0.12804878  0.9633028 0.13292683  5.808149   630
## [3]   {loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {yellowish_skin}      0.12804878  0.8015267 0.15975610  4.324026   630
## [4]   {abdominal_pain,                                                                               
##        yellowish_skin}      => {vomiting}            0.12560976  0.8110236 0.15487805  2.084763   618
## [5]   {vomiting,                                                                                     
##        yellowish_skin}      => {abdominal_pain}      0.12560976  0.9537037 0.13170732  4.546727   618
## [6]   {abdominal_pain,                                                                               
##        vomiting}            => {yellowish_skin}      0.12560976  0.7103448 0.17682927  3.832123   618
## [7]   {abdominal_pain,                                                                               
##        yellowing_of_eyes}   => {loss_of_appetite}    0.10975610  0.9574468 0.11463415  4.089096   540
## [8]   {loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {abdominal_pain}      0.10975610  0.6870229 0.15975610  3.275342   540
## [9]   {abdominal_pain,                                                                               
##        loss_of_appetite}    => {yellowing_of_eyes}   0.10975610  0.8256881 0.13292683  4.978413   540
## [10]  {loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {vomiting}            0.10975610  0.6870229 0.15975610  1.766015   540
## [11]  {vomiting,                                                                                     
##        yellowing_of_eyes}   => {loss_of_appetite}    0.10975610  0.9677419 0.11341463  4.133065   540
## [12]  {loss_of_appetite,                                                                             
##        vomiting}            => {yellowing_of_eyes}   0.10975610  0.7031250 0.15609756  4.239430   540
## [13]  {yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.10853659  0.8090909 0.13414634  3.857294   534
## [14]  {abdominal_pain,                                                                               
##        yellowish_skin}      => {yellowing_of_eyes}   0.10853659  0.7007874 0.15487805  4.225336   534
## [15]  {abdominal_pain,                                                                               
##        yellowing_of_eyes}   => {yellowish_skin}      0.10853659  0.9468085 0.11463415  5.107783   534
## [16]  {loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {fatigue}             0.10853659  0.6793893 0.15975610  1.730122   534
## [17]  {fatigue,                                                                                      
##        yellowing_of_eyes}   => {loss_of_appetite}    0.10853659  0.9673913 0.11219512  4.131567   534
## [18]  {fatigue,                                                                                      
##        loss_of_appetite}    => {yellowing_of_eyes}   0.10853659  0.6899225 0.15731707  4.159827   534
## [19]  {chills,                                                                                       
##        high_fever}          => {fatigue}             0.10731707  0.8000000 0.13414634  2.037267   528
## [20]  {chills,                                                                                       
##        fatigue}             => {high_fever}          0.10731707  0.9565217 0.11219512  3.455277   528
## [21]  {fatigue,                                                                                      
##        high_fever}          => {chills}              0.10731707  0.5398773 0.19878049  3.328567   528
## [22]  {loss_of_appetite,                                                                             
##        nausea}              => {vomiting}            0.10731707  0.7927928 0.13536585  2.037900   528
## [23]  {nausea,                                                                                       
##        vomiting}            => {loss_of_appetite}    0.10731707  0.5398773 0.19878049  2.305726   528
## [24]  {loss_of_appetite,                                                                             
##        vomiting}            => {nausea}              0.10731707  0.6875000 0.15609756  2.951571   528
## [25]  {abdominal_pain,                                                                               
##        yellowish_skin}      => {loss_of_appetite}    0.10609756  0.6850394 0.15487805  2.925689   522
## [26]  {loss_of_appetite,                                                                             
##        yellowish_skin}      => {abdominal_pain}      0.10609756  0.7981651 0.13292683  3.805206   522
## [27]  {abdominal_pain,                                                                               
##        loss_of_appetite}    => {yellowish_skin}      0.10609756  0.7981651 0.13292683  4.305891   522
## [28]  {nausea,                                                                                       
##        yellowing_of_eyes}   => {loss_of_appetite}    0.10609756  0.9560440 0.11097561  4.083104   522
## [29]  {loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {nausea}              0.10609756  0.6641221 0.15975610  2.851205   522
## [30]  {loss_of_appetite,                                                                             
##        nausea}              => {yellowing_of_eyes}   0.10609756  0.7837838 0.13536585  4.725755   522
## [31]  {high_fever,                                                                                   
##        malaise}             => {fatigue}             0.10609756  0.9456522 0.11219512  2.408183   522
## [32]  {fatigue,                                                                                      
##        malaise}             => {high_fever}          0.10609756  0.7837838 0.13536585  2.831289   522
## [33]  {fatigue,                                                                                      
##        high_fever}          => {malaise}             0.10609756  0.5337423 0.19878049  3.740758   522
## [34]  {headache,                                                                                     
##        nausea}              => {vomiting}            0.10609756  0.9456522 0.11219512  2.430830   522
## [35]  {headache,                                                                                     
##        vomiting}            => {nausea}              0.10609756  0.8130841 0.13048780  3.490728   522
## [36]  {nausea,                                                                                       
##        vomiting}            => {headache}            0.10609756  0.5337423 0.19878049  2.315707   522
## [37]  {nausea,                                                                                       
##        vomiting}            => {fatigue}             0.10609756  0.5337423 0.19878049  1.359220   522
## [38]  {fatigue,                                                                                      
##        nausea}              => {vomiting}            0.10609756  0.7909091 0.13414634  2.033058   522
## [39]  {fatigue,                                                                                      
##        vomiting}            => {nausea}              0.10609756  0.6850394 0.15487805  2.941007   522
## [40]  {high_fever,                                                                                   
##        vomiting}            => {fatigue}             0.10609756  0.7981651 0.13292683  2.032594   522
## [41]  {fatigue,                                                                                      
##        high_fever}          => {vomiting}            0.10609756  0.5337423 0.19878049  1.372002   522
## [42]  {fatigue,                                                                                      
##        vomiting}            => {high_fever}          0.10609756  0.6850394 0.15487805  2.474592   522
## [43]  {dark_urine,                                                                                   
##        yellowish_skin}      => {abdominal_pain}      0.10487805  0.9555556 0.10975610  4.555556   516
## [44]  {abdominal_pain,                                                                               
##        dark_urine}          => {yellowish_skin}      0.10487805  0.9450549 0.11097561  5.098323   516
## [45]  {abdominal_pain,                                                                               
##        yellowish_skin}      => {dark_urine}          0.10487805  0.6771654 0.15487805  5.845006   516
## [46]  {yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.10487805  0.7818182 0.13414634  3.356497   516
## [47]  {nausea,                                                                                       
##        yellowish_skin}      => {yellowing_of_eyes}   0.10487805  0.9555556 0.10975610  5.761438   516
## [48]  {nausea,                                                                                       
##        yellowing_of_eyes}   => {yellowish_skin}      0.10487805  0.9450549 0.11097561  5.098323   516
## [49]  {nausea,                                                                                       
##        yellowish_skin}      => {loss_of_appetite}    0.10487805  0.9555556 0.10975610  4.081019   516
## [50]  {loss_of_appetite,                                                                             
##        yellowish_skin}      => {nausea}              0.10487805  0.7889908 0.13292683  3.387290   516
## [51]  {loss_of_appetite,                                                                             
##        nausea}              => {yellowish_skin}      0.10487805  0.7747748 0.13536585  4.179706   516
## [52]  {abdominal_pain,                                                                               
##        nausea}              => {vomiting}            0.10487805  0.9450549 0.11097561  2.429295   516
## [53]  {abdominal_pain,                                                                               
##        vomiting}            => {nausea}              0.10487805  0.5931034 0.17682927  2.546308   516
## [54]  {nausea,                                                                                       
##        vomiting}            => {abdominal_pain}      0.10487805  0.5276074 0.19878049  2.515337   516
## [55]  {abdominal_pain,                                                                               
##        loss_of_appetite}    => {vomiting}            0.10487805  0.7889908 0.13292683  2.028127   516
## [56]  {abdominal_pain,                                                                               
##        vomiting}            => {loss_of_appetite}    0.10487805  0.5931034 0.17682927  2.533046   516
## [57]  {loss_of_appetite,                                                                             
##        vomiting}            => {abdominal_pain}      0.10487805  0.6718750 0.15609756  3.203125   516
## [58]  {abdominal_pain,                                                                               
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.10365854  0.9550562 0.10853659  4.078886   510
## [59]  {loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.10365854  0.8095238 0.12804878  3.859358   510
## [60]  {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {yellowing_of_eyes}   0.10365854  0.9770115 0.10609756  5.890805   510
## [61]  {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {yellowish_skin}      0.10365854  0.9444444 0.10975610  5.095029   510
## [62]  {nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.10000000  0.9534884 0.10487805  4.072190   492
## [63]  {loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.10000000  0.7809524 0.12804878  3.352780   492
## [64]  {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowish_skin}      => {yellowing_of_eyes}   0.10000000  0.9534884 0.10487805  5.748974   492
## [65]  {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {yellowish_skin}      0.10000000  0.9425287 0.10609756  5.084694   492
## [66]  {loss_of_appetite,                                                                             
##        malaise}             => {fatigue}             0.08902439  0.9480519 0.09390244  2.414294   438
## [67]  {fatigue,                                                                                      
##        malaise}             => {loss_of_appetite}    0.08902439  0.6576577 0.13536585  2.808746   438
## [68]  {fatigue,                                                                                      
##        loss_of_appetite}    => {malaise}             0.08902439  0.5658915 0.15731707  3.966077   438
## [69]  {dark_urine,                                                                                   
##        yellowing_of_eyes}   => {abdominal_pain}      0.08780488  0.9600000 0.09146341  4.576744   432
## [70]  {abdominal_pain,                                                                               
##        dark_urine}          => {yellowing_of_eyes}   0.08780488  0.7912088 0.11097561  4.770524   432
## [71]  {abdominal_pain,                                                                               
##        yellowing_of_eyes}   => {dark_urine}          0.08780488  0.7659574 0.11463415  6.611422   432
## [72]  {dark_urine,                                                                                   
##        yellowing_of_eyes}   => {loss_of_appetite}    0.08780488  0.9600000 0.09146341  4.100000   432
## [73]  {dark_urine,                                                                                   
##        loss_of_appetite}    => {yellowing_of_eyes}   0.08780488  0.9863014 0.08902439  5.946817   432
## [74]  {loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {dark_urine}          0.08780488  0.5496183 0.15975610  4.744074   432
## [75]  {dark_urine,                                                                                   
##        yellowish_skin}      => {yellowing_of_eyes}   0.08658537  0.7888889 0.10975610  4.756536   426
## [76]  {dark_urine,                                                                                   
##        yellowing_of_eyes}   => {yellowish_skin}      0.08658537  0.9466667 0.09146341  5.107018   426
## [77]  {yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.08658537  0.6454545 0.13414634  5.571292   426
## [78]  {joint_pain,                                                                                   
##        nausea}              => {loss_of_appetite}    0.08658537  0.9726027 0.08902439  4.153824   426
## [79]  {joint_pain,                                                                                   
##        loss_of_appetite}    => {nausea}              0.08658537  0.9594595 0.09024390  4.119145   426
## [80]  {loss_of_appetite,                                                                             
##        nausea}              => {joint_pain}          0.08658537  0.6396396 0.13536585  4.600917   426
## [81]  {abdominal_pain,                                                                               
##        yellowing_of_eyes}   => {nausea}              0.08658537  0.7553191 0.11463415  3.242731   426
## [82]  {nausea,                                                                                       
##        yellowing_of_eyes}   => {abdominal_pain}      0.08658537  0.7802198 0.11097561  3.719652   426
## [83]  {abdominal_pain,                                                                               
##        nausea}              => {yellowing_of_eyes}   0.08658537  0.7802198 0.11097561  4.704266   426
## [84]  {abdominal_pain,                                                                               
##        yellowing_of_eyes}   => {vomiting}            0.08658537  0.7553191 0.11463415  1.941573   426
## [85]  {vomiting,                                                                                     
##        yellowing_of_eyes}   => {abdominal_pain}      0.08658537  0.7634409 0.11341463  3.639660   426
## [86]  {chills,                                                                                       
##        headache}            => {high_fever}          0.08658537  0.9594595 0.09024390  3.465889   426
## [87]  {chills,                                                                                       
##        high_fever}          => {headache}            0.08658537  0.6454545 0.13414634  2.800385   426
## [88]  {headache,                                                                                     
##        high_fever}          => {chills}              0.08658537  0.7717391 0.11219512  4.758091   426
## [89]  {headache,                                                                                     
##        high_fever}          => {fatigue}             0.08658537  0.7717391 0.11219512  1.965298   426
## [90]  {fatigue,                                                                                      
##        headache}            => {high_fever}          0.08658537  0.7717391 0.11219512  2.787780   426
## [91]  {loss_of_appetite,                                                                             
##        nausea}              => {fatigue}             0.08658537  0.6396396 0.13536585  1.628896   426
## [92]  {fatigue,                                                                                      
##        nausea}              => {loss_of_appetite}    0.08658537  0.6454545 0.13414634  2.756629   426
## [93]  {fatigue,                                                                                      
##        loss_of_appetite}    => {nausea}              0.08658537  0.5503876 0.15731707  2.362921   426
## [94]  {high_fever,                                                                                   
##        loss_of_appetite}    => {fatigue}             0.08658537  0.9466667 0.09146341  2.410766   426
## [95]  {fatigue,                                                                                      
##        loss_of_appetite}    => {high_fever}          0.08658537  0.5503876 0.15731707  1.988184   426
## [96]  {loss_of_appetite,                                                                             
##        vomiting}            => {fatigue}             0.08658537  0.5546875 0.15609756  1.412558   426
## [97]  {fatigue,                                                                                      
##        loss_of_appetite}    => {vomiting}            0.08658537  0.5503876 0.15731707  1.414789   426
## [98]  {fatigue,                                                                                      
##        vomiting}            => {loss_of_appetite}    0.08658537  0.5590551 0.15487805  2.387631   426
## [99]  {abdominal_pain,                                                                               
##        dark_urine}          => {loss_of_appetite}    0.08536585  0.7692308 0.11097561  3.285256   420
## [100] {dark_urine,                                                                                   
##        loss_of_appetite}    => {abdominal_pain}      0.08536585  0.9589041 0.08902439  4.571520   420
## [101] {abdominal_pain,                                                                               
##        loss_of_appetite}    => {dark_urine}          0.08536585  0.6422018 0.13292683  5.543216   420
## [102] {joint_pain,                                                                                   
##        loss_of_appetite}    => {vomiting}            0.08536585  0.9459459 0.09024390  2.431585   420
## [103] {joint_pain,                                                                                   
##        vomiting}            => {loss_of_appetite}    0.08536585  0.9722222 0.08780488  4.152199   420
## [104] {loss_of_appetite,                                                                             
##        vomiting}            => {joint_pain}          0.08536585  0.5468750 0.15609756  3.933662   420
## [105] {yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.08536585  0.6363636 0.13414634  1.635794   420
## [106] {vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.08536585  0.6481481 0.13170732  3.907952   420
## [107] {vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.08536585  0.7526882 0.11341463  4.060555   420
## [108] {nausea,                                                                                       
##        yellowing_of_eyes}   => {vomiting}            0.08536585  0.7692308 0.11097561  1.977333   420
## [109] {vomiting,                                                                                     
##        yellowing_of_eyes}   => {nausea}              0.08536585  0.7526882 0.11341463  3.231436   420
## [110] {chills,                                                                                       
##        high_fever}          => {vomiting}            0.08536585  0.6363636 0.13414634  1.635794   420
## [111] {chills,                                                                                       
##        vomiting}            => {high_fever}          0.08536585  0.9589041 0.08902439  3.463883   420
## [112] {high_fever,                                                                                   
##        vomiting}            => {chills}              0.08536585  0.6422018 0.13292683  3.959440   420
## [113] {abdominal_pain,                                                                               
##        nausea}              => {loss_of_appetite}    0.08536585  0.7692308 0.11097561  3.285256   420
## [114] {abdominal_pain,                                                                               
##        loss_of_appetite}    => {nausea}              0.08536585  0.6422018 0.13292683  2.757097   420
## [115] {loss_of_appetite,                                                                             
##        nausea}              => {abdominal_pain}      0.08536585  0.6306306 0.13536585  3.006495   420
## [116] {abdominal_pain,                                                                               
##        fatigue}             => {vomiting}            0.08536585  0.7608696 0.11219512  1.955840   420
## [117] {fatigue,                                                                                      
##        vomiting}            => {abdominal_pain}      0.08536585  0.5511811 0.15487805  2.627724   420
## [118] {high_fever,                                                                                   
##        nausea}              => {vomiting}            0.08536585  0.9459459 0.09024390  2.431585   420
## [119] {high_fever,                                                                                   
##        vomiting}            => {nausea}              0.08536585  0.6422018 0.13292683  2.757097   420
## [120] {dark_urine,                                                                                   
##        yellowish_skin}      => {loss_of_appetite}    0.08414634  0.7666667 0.10975610  3.274306   414
## [121] {dark_urine,                                                                                   
##        loss_of_appetite}    => {yellowish_skin}      0.08414634  0.9452055 0.08902439  5.099135   414
## [122] {loss_of_appetite,                                                                             
##        yellowish_skin}      => {dark_urine}          0.08414634  0.6330275 0.13292683  5.464027   414
## [123] {abdominal_pain,                                                                               
##        dark_urine}          => {vomiting}            0.08414634  0.7582418 0.11097561  1.949085   414
## [124] {dark_urine,                                                                                   
##        vomiting}            => {abdominal_pain}      0.08414634  0.9583333 0.08780488  4.568798   414
## [125] {abdominal_pain,                                                                               
##        dark_urine}          => {fatigue}             0.08414634  0.7582418 0.11097561  1.930926   414
## [126] {dark_urine,                                                                                   
##        fatigue}             => {abdominal_pain}      0.08414634  0.9583333 0.08780488  4.568798   414
## [127] {abdominal_pain,                                                                               
##        fatigue}             => {dark_urine}          0.08414634  0.7500000 0.11219512  6.473684   414
## [128] {joint_pain,                                                                                   
##        nausea}              => {vomiting}            0.08414634  0.9452055 0.08902439  2.429682   414
## [129] {joint_pain,                                                                                   
##        vomiting}            => {nausea}              0.08414634  0.9583333 0.08780488  4.114311   414
## [130] {yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {fatigue}             0.08414634  0.6272727 0.13414634  1.597403   414
## [131] {fatigue,                                                                                      
##        yellowish_skin}      => {yellowing_of_eyes}   0.08414634  0.7666667 0.10975610  4.622549   414
## [132] {fatigue,                                                                                      
##        yellowing_of_eyes}   => {yellowish_skin}      0.08414634  0.7500000 0.11219512  4.046053   414
## [133] {abdominal_pain,                                                                               
##        yellowish_skin}      => {nausea}              0.08414634  0.5433071 0.15487805  2.332523   414
## [134] {nausea,                                                                                       
##        yellowish_skin}      => {abdominal_pain}      0.08414634  0.7666667 0.10975610  3.655039   414
## [135] {abdominal_pain,                                                                               
##        nausea}              => {yellowish_skin}      0.08414634  0.7582418 0.11097561  4.090515   414
## [136] {abdominal_pain,                                                                               
##        yellowish_skin}      => {fatigue}             0.08414634  0.5433071 0.15487805  1.383577   414
## [137] {fatigue,                                                                                      
##        yellowish_skin}      => {abdominal_pain}      0.08414634  0.7666667 0.10975610  3.655039   414
## [138] {abdominal_pain,                                                                               
##        fatigue}             => {yellowish_skin}      0.08414634  0.7500000 0.11219512  4.046053   414
## [139] {loss_of_appetite,                                                                             
##        yellowish_skin}      => {vomiting}            0.08414634  0.6330275 0.13292683  1.627218   414
## [140] {vomiting,                                                                                     
##        yellowish_skin}      => {loss_of_appetite}    0.08414634  0.6388889 0.13170732  2.728588   414
## [141] {loss_of_appetite,                                                                             
##        vomiting}            => {yellowish_skin}      0.08414634  0.5390625 0.15609756  2.908100   414
## [142] {loss_of_appetite,                                                                             
##        yellowish_skin}      => {fatigue}             0.08414634  0.6330275 0.13292683  1.612058   414
## [143] {fatigue,                                                                                      
##        yellowish_skin}      => {loss_of_appetite}    0.08414634  0.7666667 0.10975610  3.274306   414
## [144] {fatigue,                                                                                      
##        loss_of_appetite}    => {yellowish_skin}      0.08414634  0.5348837 0.15731707  2.885557   414
## [145] {chills,                                                                                       
##        malaise}             => {high_fever}          0.08414634  0.9452055 0.08902439  3.414399   414
## [146] {chills,                                                                                       
##        high_fever}          => {malaise}             0.08414634  0.6272727 0.13414634  4.396270   414
## [147] {high_fever,                                                                                   
##        malaise}             => {chills}              0.08414634  0.7500000 0.11219512  4.624060   414
## [148] {chills,                                                                                       
##        malaise}             => {fatigue}             0.08414634  0.9452055 0.08902439  2.407045   414
## [149] {chills,                                                                                       
##        fatigue}             => {malaise}             0.08414634  0.7500000 0.11219512  5.256410   414
## [150] {fatigue,                                                                                      
##        malaise}             => {chills}              0.08414634  0.6216216 0.13536585  3.832554   414
## [151] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowing_of_eyes}   => {loss_of_appetite}    0.08414634  0.9583333 0.08780488  4.092882   414
## [152] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {abdominal_pain}      0.08414634  0.9583333 0.08780488  4.568798   414
## [153] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite}    => {yellowing_of_eyes}   0.08414634  0.9857143 0.08536585  5.943277   414
## [154] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {dark_urine}          0.08414634  0.7666667 0.10975610  6.617544   414
## [155] {dark_urine,                                                                                   
##        yellowish_skin}      => {vomiting}            0.08292683  0.7555556 0.10975610  1.942180   408
## [156] {dark_urine,                                                                                   
##        vomiting}            => {yellowish_skin}      0.08292683  0.9444444 0.08780488  5.095029   408
## [157] {vomiting,                                                                                     
##        yellowish_skin}      => {dark_urine}          0.08292683  0.6296296 0.13170732  5.434698   408
## [158] {dark_urine,                                                                                   
##        yellowish_skin}      => {fatigue}             0.08292683  0.7555556 0.10975610  1.924086   408
## [159] {dark_urine,                                                                                   
##        fatigue}             => {yellowish_skin}      0.08292683  0.9444444 0.08780488  5.095029   408
## [160] {fatigue,                                                                                      
##        yellowish_skin}      => {dark_urine}          0.08292683  0.7555556 0.10975610  6.521637   408
## [161] {nausea,                                                                                       
##        yellowish_skin}      => {vomiting}            0.08292683  0.7555556 0.10975610  1.942180   408
## [162] {vomiting,                                                                                     
##        yellowish_skin}      => {nausea}              0.08292683  0.6296296 0.13170732  2.703122   408
## [163] {dark_urine,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.08292683  0.9577465 0.08658537  4.566001   408
## [164] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowish_skin}      => {yellowing_of_eyes}   0.08292683  0.7906977 0.10487805  4.767442   408
## [165] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowing_of_eyes}   => {yellowish_skin}      0.08292683  0.9444444 0.08780488  5.095029   408
## [166] {abdominal_pain,                                                                               
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.08292683  0.7640449 0.10853659  6.594914   408
## [167] {dark_urine,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.08292683  0.9577465 0.08658537  4.090376   408
## [168] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {yellowing_of_eyes}   0.08292683  0.9855072 0.08414634  5.942029   408
## [169] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {yellowish_skin}      0.08292683  0.9444444 0.08780488  5.095029   408
## [170] {loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.08292683  0.6476190 0.12804878  5.589975   408
## [171] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {loss_of_appetite}    0.08292683  0.9577465 0.08658537  4.090376   408
## [172] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {nausea}              0.08292683  0.7555556 0.10975610  3.243746   408
## [173] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {abdominal_pain}      0.08292683  0.7816092 0.10609756  3.726276   408
## [174] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea}              => {yellowing_of_eyes}   0.08292683  0.9714286 0.08536585  5.857143   408
## [175] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {vomiting}            0.08292683  0.7555556 0.10975610  1.942180   408
## [176] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {loss_of_appetite}    0.08292683  0.9577465 0.08658537  4.090376   408
## [177] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {abdominal_pain}      0.08292683  0.7555556 0.10975610  3.602067   408
## [178] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting}            => {yellowing_of_eyes}   0.08292683  0.7906977 0.10487805  4.767442   408
## [179] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        nausea}              => {vomiting}            0.08170732  0.9436620 0.08658537  2.425714   402
## [180] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        vomiting}            => {loss_of_appetite}    0.08170732  0.9710145 0.08414634  4.147041   402
## [181] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        vomiting}            => {nausea}              0.08170732  0.9571429 0.08536585  4.109200   402
## [182] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting}            => {joint_pain}          0.08170732  0.7613636 0.10731707  5.476475   402
## [183] {abdominal_pain,                                                                               
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.08170732  0.7528090 0.10853659  3.231955   402
## [184] {nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.08170732  0.7790698 0.10487805  3.714170   402
## [185] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowish_skin}      => {yellowing_of_eyes}   0.08170732  0.9710145 0.08414634  5.854646   402
## [186] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {yellowish_skin}      0.08170732  0.9436620 0.08658537  5.090808   402
## [187] {abdominal_pain,                                                                               
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.08170732  0.7528090 0.10853659  1.935120   402
## [188] {vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.08170732  0.9571429 0.08536585  4.563123   402
## [189] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.08170732  0.6504854 0.12560976  3.922045   402
## [190] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.08170732  0.9436620 0.08658537  5.090808   402
## [191] {loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.08170732  0.6380952 0.12804878  1.640245   402
## [192] {vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.08170732  0.9571429 0.08536585  4.087798   402
## [193] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.08170732  0.9710145 0.08414634  5.854646   402
## [194] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.08170732  0.7444444 0.10975610  4.016082   402
## [195] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {vomiting}            0.08170732  0.9436620 0.08658537  2.425714   402
## [196] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {nausea}              0.08170732  0.9436620 0.08658537  4.051324   402
## [197] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {abdominal_pain}      0.08170732  0.9571429 0.08536585  4.563123   402
## [198] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting}            => {yellowing_of_eyes}   0.08170732  0.7790698 0.10487805  4.697332   402
## [199] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {vomiting}            0.08170732  0.7701149 0.10609756  1.979606   402
## [200] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {loss_of_appetite}    0.08170732  0.9571429 0.08536585  4.087798   402
## [201] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {nausea}              0.08170732  0.7444444 0.10975610  3.196044   402
## [202] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting}            => {yellowing_of_eyes}   0.08170732  0.7613636 0.10731707  4.590575   402
## [203] {cough,                                                                                        
##        high_fever}          => {fatigue}             0.08048780  0.9295775 0.08658537  2.367247   396
## [204] {cough,                                                                                        
##        fatigue}             => {high_fever}          0.08048780  0.9428571 0.08536585  3.405916   396
## [205] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowish_skin}      => {loss_of_appetite}    0.08048780  0.7674419 0.10487805  3.277616   396
## [206] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {abdominal_pain}      0.08048780  0.9565217 0.08414634  4.560162   396
## [207] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite}    => {yellowish_skin}      0.08048780  0.9428571 0.08536585  5.086466   396
## [208] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {dark_urine}          0.08048780  0.7586207 0.10609756  6.548094   396
## [209] {nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.08048780  0.7674419 0.10487805  1.972735   396
## [210] {vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.08048780  0.9428571 0.08536585  4.047868   396
## [211] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.08048780  0.9705882 0.08292683  5.852076   396
## [212] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.08048780  0.9428571 0.08536585  5.086466   396
## [213] {loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {fatigue}             0.08048780  0.6285714 0.12804878  1.600710   396
## [214] {fatigue,                                                                                      
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.08048780  0.9565217 0.08414634  4.085145   396
## [215] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {yellowing_of_eyes}   0.08048780  0.9565217 0.08414634  5.767263   396
## [216] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {yellowish_skin}      0.08048780  0.7415730 0.10853659  4.000591   396
## [217] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowish_skin}      => {loss_of_appetite}    0.08048780  0.9565217 0.08414634  4.085145   396
## [218] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {nausea}              0.08048780  0.7586207 0.10609756  3.256906   396
## [219] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowish_skin}      => {abdominal_pain}      0.08048780  0.7674419 0.10487805  3.658734   396
## [220] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea}              => {yellowish_skin}      0.08048780  0.9428571 0.08536585  5.086466   396
## [221] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {vomiting}            0.08048780  0.7586207 0.10609756  1.950059   396
## [222] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowish_skin}      => {loss_of_appetite}    0.08048780  0.6407767 0.12560976  2.736650   396
## [223] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowish_skin}      => {abdominal_pain}      0.08048780  0.9565217 0.08414634  4.560162   396
## [224] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting}            => {yellowish_skin}      0.08048780  0.7674419 0.10487805  4.140147   396
## [225] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea}              => {vomiting}            0.08048780  0.9428571 0.08536585  2.423645   396
## [226] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting}            => {loss_of_appetite}    0.08048780  0.7674419 0.10487805  3.277616   396
## [227] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting}            => {nausea}              0.08048780  0.7674419 0.10487805  3.294777   396
## [228] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting}            => {abdominal_pain}      0.08048780  0.7500000 0.10731707  3.575581   396
## [229] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowish_skin}      => {vomiting}            0.07926829  0.7558140 0.10487805  1.942845   390
## [230] {dark_urine,                                                                                   
##        vomiting,                                                                                     
##        yellowish_skin}      => {abdominal_pain}      0.07926829  0.9558824 0.08292683  4.557114   390
## [231] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        vomiting}            => {yellowish_skin}      0.07926829  0.9420290 0.08414634  5.081998   390
## [232] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowish_skin}      => {dark_urine}          0.07926829  0.6310680 0.12560976  5.447113   390
## [233] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowish_skin}      => {fatigue}             0.07926829  0.7558140 0.10487805  1.924744   390
## [234] {dark_urine,                                                                                   
##        fatigue,                                                                                      
##        yellowish_skin}      => {abdominal_pain}      0.07926829  0.9558824 0.08292683  4.557114   390
## [235] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        fatigue}             => {yellowish_skin}      0.07926829  0.9420290 0.08414634  5.081998   390
## [236] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        yellowish_skin}      => {dark_urine}          0.07926829  0.9420290 0.08414634  8.131198   390
## [237] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowish_skin}      => {vomiting}            0.07926829  0.9420290 0.08414634  2.421517   390
## [238] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowish_skin}      => {nausea}              0.07926829  0.6310680 0.12560976  2.709297   390
## [239] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {abdominal_pain}      0.07926829  0.9558824 0.08292683  4.557114   390
## [240] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting}            => {yellowish_skin}      0.07926829  0.7558140 0.10487805  4.077417   390
## [241] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowish_skin}      => {vomiting}            0.07926829  0.7558140 0.10487805  1.942845   390
## [242] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {loss_of_appetite}    0.07926829  0.9558824 0.08292683  4.082414   390
## [243] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowish_skin}      => {nausea}              0.07926829  0.9420290 0.08414634  4.044313   390
## [244] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting}            => {yellowish_skin}      0.07926829  0.7386364 0.10731707  3.984749   390
## [245] {chills,                                                                                       
##        high_fever,                                                                                   
##        malaise}             => {fatigue}             0.07926829  0.9420290 0.08414634  2.398956   390
## [246] {chills,                                                                                       
##        fatigue,                                                                                      
##        malaise}             => {high_fever}          0.07926829  0.9420290 0.08414634  3.402924   390
## [247] {chills,                                                                                       
##        fatigue,                                                                                      
##        high_fever}          => {malaise}             0.07926829  0.7386364 0.10731707  5.176768   390
## [248] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise}             => {chills}              0.07926829  0.7471264 0.10609756  4.606343   390
## [249] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.07926829  0.9558824 0.08292683  4.082414   390
## [250] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.07926829  0.9558824 0.08292683  4.557114   390
## [251] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {yellowing_of_eyes}   0.07926829  0.9848485 0.08048780  5.938057   390
## [252] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {yellowish_skin}      0.07926829  0.9420290 0.08414634  5.081998   390
## [253] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.07926829  0.7647059 0.10365854  6.600619   390
## [254] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.07804878  0.9552239 0.08170732  4.079602   384
## [255] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.07804878  0.7529412 0.10365854  3.232522   384
## [256] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.07804878  0.7804878 0.10000000  3.720930   384
## [257] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowish_skin}      => {yellowing_of_eyes}   0.07804878  0.9696970 0.08048780  5.846702   384
## [258] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {yellowish_skin}      0.07804878  0.9411765 0.08292683  5.077399   384
## [259] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.07804878  0.7529412 0.10365854  1.935460   384
## [260] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.07804878  0.9552239 0.08170732  4.079602   384
## [261] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.07804878  0.9552239 0.08170732  4.553974   384
## [262] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.07804878  0.9696970 0.08048780  5.846702   384
## [263] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.07804878  0.9411765 0.08292683  5.077399   384
## [264] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {vomiting}            0.07804878  0.9411765 0.08292683  2.419325   384
## [265] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {loss_of_appetite}    0.07804878  0.9552239 0.08170732  4.079602   384
## [266] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {nausea}              0.07804878  0.9411765 0.08292683  4.040653   384
## [267] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {abdominal_pain}      0.07804878  0.9552239 0.08170732  4.553974   384
## [268] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting}            => {yellowing_of_eyes}   0.07804878  0.9696970 0.08048780  5.846702   384
## [269] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.07682927  0.9402985 0.08170732  2.417068   378
## [270] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.07682927  0.9402985 0.08170732  4.036884   378
## [271] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.07682927  0.9545455 0.08048780  4.550740   378
## [272] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.07682927  0.9692308 0.07926829  5.843891   378
## [273] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.07682927  0.9402985 0.08170732  5.072663   378
## [274] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.07682927  0.7682927 0.10000000  1.974922   378
## [275] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.07682927  0.9545455 0.08048780  4.076705   378
## [276] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.07682927  0.9402985 0.08170732  4.036884   378
## [277] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.07682927  0.9692308 0.07926829  5.843891   378
## [278] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.07682927  0.9402985 0.08170732  5.072663   378
## [279] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowish_skin}      => {vomiting}            0.07560976  0.9393939 0.08048780  2.414743   372
## [280] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {loss_of_appetite}    0.07560976  0.9538462 0.07926829  4.073718   372
## [281] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowish_skin}      => {nausea}              0.07560976  0.9393939 0.08048780  4.033000   372
## [282] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {abdominal_pain}      0.07560976  0.9538462 0.07926829  4.547406   372
## [283] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting}            => {yellowish_skin}      0.07560976  0.9393939 0.08048780  5.067783   372
## [284] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.07317073  0.9375000 0.07804878  2.409875   360
## [285] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.07317073  0.9523810 0.07682927  4.067460   360
## [286] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.07317073  0.9375000 0.07804878  4.024869   360
## [287] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.07317073  0.9523810 0.07682927  4.540421   360
## [288] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.07317073  0.9677419 0.07560976  5.834915   360
## [289] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.07317073  0.9375000 0.07804878  5.057566   360
## [290] {chest_pain,                                                                                   
##        phlegm}              => {malaise}             0.06951220  0.9661017 0.07195122  6.770969   342
## [291] {malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06951220  1.0000000 0.06951220  7.068966   342
## [292] {chest_pain,                                                                                   
##        malaise}             => {phlegm}              0.06951220  0.9827586 0.07073171 13.658679   342
## [293] {cough,                                                                                        
##        phlegm}              => {chest_pain}          0.06829268  1.0000000 0.06829268  7.068966   336
## [294] {chest_pain,                                                                                   
##        phlegm}              => {cough}               0.06829268  0.9491525 0.07195122  8.279841   336
## [295] {chest_pain,                                                                                   
##        cough}               => {phlegm}              0.06829268  0.7466667 0.09146341 10.377401   336
## [296] {chest_pain,                                                                                   
##        phlegm}              => {chills}              0.06829268  0.9491525 0.07195122  5.851918   336
## [297] {chills,                                                                                       
##        phlegm}              => {chest_pain}          0.06829268  1.0000000 0.06829268  7.068966   336
## [298] {chest_pain,                                                                                   
##        chills}              => {phlegm}              0.06829268  0.9824561 0.06951220 13.654475   336
## [299] {chest_pain,                                                                                   
##        phlegm}              => {high_fever}          0.06829268  0.9491525 0.07195122  3.428657   336
## [300] {high_fever,                                                                                   
##        phlegm}              => {chest_pain}          0.06829268  1.0000000 0.06829268  7.068966   336
## [301] {chest_pain,                                                                                   
##        high_fever}          => {phlegm}              0.06829268  0.9824561 0.06951220 13.654475   336
## [302] {chest_pain,                                                                                   
##        phlegm}              => {fatigue}             0.06829268  0.9491525 0.07195122  2.417097   336
## [303] {fatigue,                                                                                      
##        phlegm}              => {chest_pain}          0.06829268  1.0000000 0.06829268  7.068966   336
## [304] {chest_pain,                                                                                   
##        fatigue}             => {phlegm}              0.06829268  0.9824561 0.06951220 13.654475   336
## [305] {chest_pain,                                                                                   
##        cough}               => {malaise}             0.06707317  0.7333333 0.09146341  5.139601   330
## [306] {cough,                                                                                        
##        malaise}             => {chest_pain}          0.06707317  1.0000000 0.06707317  7.068966   330
## [307] {chest_pain,                                                                                   
##        malaise}             => {cough}               0.06707317  0.9482759 0.07073171  8.272194   330
## [308] {chest_pain,                                                                                   
##        chills}              => {malaise}             0.06707317  0.9649123 0.06951220  6.762633   330
## [309] {chest_pain,                                                                                   
##        malaise}             => {chills}              0.06707317  0.9482759 0.07073171  5.846513   330
## [310] {chills,                                                                                       
##        malaise}             => {chest_pain}          0.06707317  0.7534247 0.08902439  5.325933   330
## [311] {chest_pain,                                                                                   
##        malaise}             => {high_fever}          0.06707317  0.9482759 0.07073171  3.425490   330
## [312] {chest_pain,                                                                                   
##        high_fever}          => {malaise}             0.06707317  0.9649123 0.06951220  6.762633   330
## [313] {high_fever,                                                                                   
##        malaise}             => {chest_pain}          0.06707317  0.5978261 0.11219512  4.226012   330
## [314] {chest_pain,                                                                                   
##        malaise}             => {fatigue}             0.06707317  0.9482759 0.07073171  2.414864   330
## [315] {chest_pain,                                                                                   
##        fatigue}             => {malaise}             0.06707317  0.9649123 0.06951220  6.762633   330
## [316] {loss_of_appetite,                                                                             
##        malaise}             => {high_fever}          0.06707317  0.7142857 0.09390244  2.580239   330
## [317] {high_fever,                                                                                   
##        malaise}             => {loss_of_appetite}    0.06707317  0.5978261 0.11219512  2.553216   330
## [318] {high_fever,                                                                                   
##        loss_of_appetite}    => {malaise}             0.06707317  0.7333333 0.09146341  5.139601   330
## [319] {malaise,                                                                                      
##        swelled_lymph_nodes} => {high_fever}          0.06585366  0.9473684 0.06951220  3.422212   324
## [320] {high_fever,                                                                                   
##        swelled_lymph_nodes} => {malaise}             0.06585366  0.9818182 0.06707317  6.881119   324
## [321] {high_fever,                                                                                   
##        malaise}             => {swelled_lymph_nodes} 0.06585366  0.5869565 0.11219512  8.298351   324
## [322] {malaise,                                                                                      
##        swelled_lymph_nodes} => {fatigue}             0.06585366  0.9473684 0.06951220  2.412553   324
## [323] {fatigue,                                                                                      
##        swelled_lymph_nodes} => {malaise}             0.06585366  0.9818182 0.06707317  6.881119   324
## [324] {cough,                                                                                        
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [325] {malaise,                                                                                      
##        phlegm}              => {cough}               0.06585366  0.9473684 0.06951220  8.264278   324
## [326] {cough,                                                                                        
##        malaise}             => {phlegm}              0.06585366  0.9818182 0.06707317 13.645609   324
## [327] {chills,                                                                                       
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [328] {malaise,                                                                                      
##        phlegm}              => {chills}              0.06585366  0.9473684 0.06951220  5.840918   324
## [329] {chills,                                                                                       
##        malaise}             => {phlegm}              0.06585366  0.7397260 0.08902439 10.280938   324
## [330] {malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06585366  0.9473684 0.06951220  3.422212   324
## [331] {high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [332] {high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06585366  0.5869565 0.11219512  8.157701   324
## [333] {malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06585366  0.9473684 0.06951220  2.412553   324
## [334] {fatigue,                                                                                      
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [335] {chills,                                                                                       
##        muscle_pain}         => {headache}            0.06585366  0.9642857 0.06829268  4.183673   324
## [336] {headache,                                                                                     
##        muscle_pain}         => {chills}              0.06585366  0.9473684 0.06951220  5.840918   324
## [337] {chills,                                                                                       
##        headache}            => {muscle_pain}         0.06585366  0.7297297 0.09024390  7.574410   324
## [338] {headache,                                                                                     
##        muscle_pain}         => {high_fever}          0.06585366  0.9473684 0.06951220  3.422212   324
## [339] {high_fever,                                                                                   
##        muscle_pain}         => {headache}            0.06585366  0.9642857 0.06829268  4.183673   324
## [340] {headache,                                                                                     
##        high_fever}          => {muscle_pain}         0.06585366  0.5869565 0.11219512  6.092460   324
## [341] {muscle_pain,                                                                                  
##        nausea}              => {vomiting}            0.06585366  0.9473684 0.06951220  2.435242   324
## [342] {muscle_pain,                                                                                  
##        vomiting}            => {nausea}              0.06585366  0.9642857 0.06829268  4.139865   324
## [343] {chest_pain,                                                                                   
##        cough}               => {chills}              0.06585366  0.7200000 0.09146341  4.439098   324
## [344] {chills,                                                                                       
##        cough}               => {chest_pain}          0.06585366  1.0000000 0.06585366  7.068966   324
## [345] {chest_pain,                                                                                   
##        chills}              => {cough}               0.06585366  0.9473684 0.06951220  8.264278   324
## [346] {chest_pain,                                                                                   
##        cough}               => {high_fever}          0.06585366  0.7200000 0.09146341  2.600881   324
## [347] {cough,                                                                                        
##        high_fever}          => {chest_pain}          0.06585366  0.7605634 0.08658537  5.376396   324
## [348] {chest_pain,                                                                                   
##        high_fever}          => {cough}               0.06585366  0.9473684 0.06951220  8.264278   324
## [349] {chest_pain,                                                                                   
##        cough}               => {fatigue}             0.06585366  0.7200000 0.09146341  1.833540   324
## [350] {cough,                                                                                        
##        fatigue}             => {chest_pain}          0.06585366  0.7714286 0.08536585  5.453202   324
## [351] {chest_pain,                                                                                   
##        fatigue}             => {cough}               0.06585366  0.9473684 0.06951220  8.264278   324
## [352] {joint_pain,                                                                                   
##        yellowing_of_eyes}   => {abdominal_pain}      0.06585366  0.9642857 0.06829268  4.597176   324
## [353] {abdominal_pain,                                                                               
##        joint_pain}          => {yellowing_of_eyes}   0.06585366  0.9818182 0.06707317  5.919786   324
## [354] {abdominal_pain,                                                                               
##        yellowing_of_eyes}   => {joint_pain}          0.06585366  0.5744681 0.11463415  4.132139   324
## [355] {joint_pain,                                                                                   
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06585366  0.9642857 0.06829268  4.118304   324
## [356] {joint_pain,                                                                                   
##        loss_of_appetite}    => {yellowing_of_eyes}   0.06585366  0.7297297 0.09024390  4.399841   324
## [357] {chest_pain,                                                                                   
##        chills}              => {high_fever}          0.06585366  0.9473684 0.06951220  3.422212   324
## [358] {chest_pain,                                                                                   
##        high_fever}          => {chills}              0.06585366  0.9473684 0.06951220  5.840918   324
## [359] {chest_pain,                                                                                   
##        chills}              => {fatigue}             0.06585366  0.9473684 0.06951220  2.412553   324
## [360] {chest_pain,                                                                                   
##        fatigue}             => {chills}              0.06585366  0.9473684 0.06951220  5.840918   324
## [361] {chills,                                                                                       
##        fatigue}             => {chest_pain}          0.06585366  0.5869565 0.11219512  4.149175   324
## [362] {chest_pain,                                                                                   
##        high_fever}          => {fatigue}             0.06585366  0.9473684 0.06951220  2.412553   324
## [363] {chest_pain,                                                                                   
##        fatigue}             => {high_fever}          0.06585366  0.9473684 0.06951220  3.422212   324
## [364] {abdominal_pain,                                                                               
##        yellowing_of_eyes}   => {fatigue}             0.06585366  0.5744681 0.11463415  1.462931   324
## [365] {fatigue,                                                                                      
##        yellowing_of_eyes}   => {abdominal_pain}      0.06585366  0.5869565 0.11219512  2.798281   324
## [366] {abdominal_pain,                                                                               
##        fatigue}             => {yellowing_of_eyes}   0.06585366  0.5869565 0.11219512  3.539003   324
## [367] {chills,                                                                                       
##        headache}            => {nausea}              0.06585366  0.7297297 0.09024390  3.132871   324
## [368] {chills,                                                                                       
##        nausea}              => {headache}            0.06585366  0.9642857 0.06829268  4.183673   324
## [369] {headache,                                                                                     
##        nausea}              => {chills}              0.06585366  0.5869565 0.11219512  3.618830   324
## [370] {chills,                                                                                       
##        headache}            => {fatigue}             0.06585366  0.7297297 0.09024390  1.858318   324
## [371] {chills,                                                                                       
##        fatigue}             => {headache}            0.06585366  0.5869565 0.11219512  2.546584   324
## [372] {fatigue,                                                                                      
##        headache}            => {chills}              0.06585366  0.5869565 0.11219512  3.618830   324
## [373] {chills,                                                                                       
##        nausea}              => {high_fever}          0.06585366  0.9642857 0.06829268  3.483323   324
## [374] {high_fever,                                                                                   
##        nausea}              => {chills}              0.06585366  0.7297297 0.09024390  4.499086   324
## [375] {abdominal_pain,                                                                               
##        high_fever}          => {fatigue}             0.06585366  0.9642857 0.06829268  2.455634   324
## [376] {abdominal_pain,                                                                               
##        fatigue}             => {high_fever}          0.06585366  0.5869565 0.11219512  2.120283   324
## [377] {headache,                                                                                     
##        nausea}              => {high_fever}          0.06585366  0.5869565 0.11219512  2.120283   324
## [378] {headache,                                                                                     
##        high_fever}          => {nausea}              0.06585366  0.5869565 0.11219512  2.519918   324
## [379] {high_fever,                                                                                   
##        nausea}              => {headache}            0.06585366  0.7297297 0.09024390  3.166023   324
## [380] {headache,                                                                                     
##        nausea}              => {fatigue}             0.06585366  0.5869565 0.11219512  1.494734   324
## [381] {fatigue,                                                                                      
##        headache}            => {nausea}              0.06585366  0.5869565 0.11219512  2.519918   324
## [382] {high_fever,                                                                                   
##        nausea}              => {fatigue}             0.06585366  0.7297297 0.09024390  1.858318   324
## [383] {high_fever,                                                                                   
##        loss_of_appetite}    => {vomiting}            0.06585366  0.7200000 0.09146341  1.850784   324
## [384] {chest_pain,                                                                                   
##        cough,                                                                                        
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [385] {cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06585366  1.0000000 0.06585366  7.068966   324
## [386] {chest_pain,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {cough}               0.06585366  0.9473684 0.06951220  8.264278   324
## [387] {chest_pain,                                                                                   
##        cough,                                                                                        
##        malaise}             => {phlegm}              0.06585366  0.9818182 0.06707317 13.645609   324
## [388] {chest_pain,                                                                                   
##        chills,                                                                                       
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [389] {chest_pain,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {chills}              0.06585366  0.9473684 0.06951220  5.840918   324
## [390] {chills,                                                                                       
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06585366  1.0000000 0.06585366  7.068966   324
## [391] {chest_pain,                                                                                   
##        chills,                                                                                       
##        malaise}             => {phlegm}              0.06585366  0.9818182 0.06707317 13.645609   324
## [392] {chest_pain,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06585366  0.9473684 0.06951220  3.422212   324
## [393] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [394] {high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06585366  1.0000000 0.06585366  7.068966   324
## [395] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06585366  0.9818182 0.06707317 13.645609   324
## [396] {chest_pain,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06585366  0.9473684 0.06951220  2.412553   324
## [397] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        phlegm}              => {malaise}             0.06585366  0.9642857 0.06829268  6.758242   324
## [398] {fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06585366  1.0000000 0.06585366  7.068966   324
## [399] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        malaise}             => {phlegm}              0.06585366  0.9818182 0.06707317 13.645609   324
## [400] {cough,                                                                                        
##        phlegm}              => {chills}              0.06463415  0.9464286 0.06829268  5.835124   318
## [401] {chills,                                                                                       
##        phlegm}              => {cough}               0.06463415  0.9464286 0.06829268  8.256079   318
## [402] {chills,                                                                                       
##        cough}               => {phlegm}              0.06463415  0.9814815 0.06585366 13.640929   318
## [403] {cough,                                                                                        
##        phlegm}              => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [404] {high_fever,                                                                                   
##        phlegm}              => {cough}               0.06463415  0.9464286 0.06829268  8.256079   318
## [405] {cough,                                                                                        
##        high_fever}          => {phlegm}              0.06463415  0.7464789 0.08658537 10.374791   318
## [406] {cough,                                                                                        
##        phlegm}              => {fatigue}             0.06463415  0.9464286 0.06829268  2.410160   318
## [407] {fatigue,                                                                                      
##        phlegm}              => {cough}               0.06463415  0.9464286 0.06829268  8.256079   318
## [408] {cough,                                                                                        
##        fatigue}             => {phlegm}              0.06463415  0.7571429 0.08536585 10.523002   318
## [409] {chills,                                                                                       
##        phlegm}              => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [410] {high_fever,                                                                                   
##        phlegm}              => {chills}              0.06463415  0.9464286 0.06829268  5.835124   318
## [411] {chills,                                                                                       
##        phlegm}              => {fatigue}             0.06463415  0.9464286 0.06829268  2.410160   318
## [412] {fatigue,                                                                                      
##        phlegm}              => {chills}              0.06463415  0.9464286 0.06829268  5.835124   318
## [413] {chills,                                                                                       
##        fatigue}             => {phlegm}              0.06463415  0.5760870 0.11219512  8.006632   318
## [414] {high_fever,                                                                                   
##        phlegm}              => {fatigue}             0.06463415  0.9464286 0.06829268  2.410160   318
## [415] {fatigue,                                                                                      
##        phlegm}              => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [416] {chills,                                                                                       
##        muscle_pain}         => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [417] {high_fever,                                                                                   
##        muscle_pain}         => {chills}              0.06463415  0.9464286 0.06829268  5.835124   318
## [418] {dark_urine,                                                                                   
##        joint_pain}          => {yellowing_of_eyes}   0.06463415  0.9814815 0.06585366  5.917756   318
## [419] {dark_urine,                                                                                   
##        yellowing_of_eyes}   => {joint_pain}          0.06463415  0.7066667 0.09146341  5.083041   318
## [420] {joint_pain,                                                                                   
##        yellowing_of_eyes}   => {dark_urine}          0.06463415  0.9464286 0.06829268  8.169173   318
## [421] {dark_urine,                                                                                   
##        yellowing_of_eyes}   => {nausea}              0.06463415  0.7066667 0.09146341  3.033857   318
## [422] {dark_urine,                                                                                   
##        nausea}              => {yellowing_of_eyes}   0.06463415  0.9814815 0.06585366  5.917756   318
## [423] {nausea,                                                                                       
##        yellowing_of_eyes}   => {dark_urine}          0.06463415  0.5824176 0.11097561  5.027183   318
## [424] {dark_urine,                                                                                   
##        yellowing_of_eyes}   => {vomiting}            0.06463415  0.7066667 0.09146341  1.816510   318
## [425] {dark_urine,                                                                                   
##        vomiting}            => {yellowing_of_eyes}   0.06463415  0.7361111 0.08780488  4.438317   318
## [426] {vomiting,                                                                                     
##        yellowing_of_eyes}   => {dark_urine}          0.06463415  0.5698925 0.11341463  4.919072   318
## [427] {dark_urine,                                                                                   
##        yellowing_of_eyes}   => {fatigue}             0.06463415  0.7066667 0.09146341  1.799586   318
## [428] {dark_urine,                                                                                   
##        fatigue}             => {yellowing_of_eyes}   0.06463415  0.7361111 0.08780488  4.438317   318
## [429] {fatigue,                                                                                      
##        yellowing_of_eyes}   => {dark_urine}          0.06463415  0.5760870 0.11219512  4.972540   318
## [430] {joint_pain,                                                                                   
##        yellowish_skin}      => {yellowing_of_eyes}   0.06463415  0.9814815 0.06585366  5.917756   318
## [431] {joint_pain,                                                                                   
##        yellowing_of_eyes}   => {yellowish_skin}      0.06463415  0.9464286 0.06829268  5.105733   318
## [432] {joint_pain,                                                                                   
##        yellowing_of_eyes}   => {nausea}              0.06463415  0.9464286 0.06829268  4.063201   318
## [433] {joint_pain,                                                                                   
##        nausea}              => {yellowing_of_eyes}   0.06463415  0.7260274 0.08902439  4.377518   318
## [434] {nausea,                                                                                       
##        yellowing_of_eyes}   => {joint_pain}          0.06463415  0.5824176 0.11097561  4.189319   318
## [435] {joint_pain,                                                                                   
##        yellowing_of_eyes}   => {vomiting}            0.06463415  0.9464286 0.06829268  2.432826   318
## [436] {joint_pain,                                                                                   
##        vomiting}            => {yellowing_of_eyes}   0.06463415  0.7361111 0.08780488  4.438317   318
## [437] {vomiting,                                                                                     
##        yellowing_of_eyes}   => {joint_pain}          0.06463415  0.5698925 0.11341463  4.099227   318
## [438] {abdominal_pain,                                                                               
##        joint_pain}          => {loss_of_appetite}    0.06463415  0.9636364 0.06707317  4.115530   318
## [439] {joint_pain,                                                                                   
##        loss_of_appetite}    => {abdominal_pain}      0.06463415  0.7162162 0.09024390  3.414519   318
## [440] {joint_pain,                                                                                   
##        loss_of_appetite}    => {fatigue}             0.06463415  0.7162162 0.09024390  1.823905   318
## [441] {fatigue,                                                                                      
##        joint_pain}          => {loss_of_appetite}    0.06463415  0.9814815 0.06585366  4.191744   318
## [442] {vomiting,                                                                                     
##        yellowing_of_eyes}   => {fatigue}             0.06463415  0.5698925 0.11341463  1.451279   318
## [443] {fatigue,                                                                                      
##        yellowing_of_eyes}   => {vomiting}            0.06463415  0.5760870 0.11219512  1.480850   318
## [444] {chills,                                                                                       
##        headache}            => {vomiting}            0.06463415  0.7162162 0.09024390  1.841057   318
## [445] {chills,                                                                                       
##        vomiting}            => {headache}            0.06463415  0.7260274 0.08902439  3.149960   318
## [446] {chills,                                                                                       
##        nausea}              => {vomiting}            0.06463415  0.9464286 0.06829268  2.432826   318
## [447] {chills,                                                                                       
##        vomiting}            => {nausea}              0.06463415  0.7260274 0.08902439  3.116976   318
## [448] {chills,                                                                                       
##        vomiting}            => {fatigue}             0.06463415  0.7260274 0.08902439  1.848890   318
## [449] {chills,                                                                                       
##        fatigue}             => {vomiting}            0.06463415  0.5760870 0.11219512  1.480850   318
## [450] {headache,                                                                                     
##        malaise}             => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [451] {high_fever,                                                                                   
##        malaise}             => {headache}            0.06463415  0.5760870 0.11219512  2.499425   318
## [452] {headache,                                                                                     
##        high_fever}          => {malaise}             0.06463415  0.5760870 0.11219512  4.037533   318
## [453] {headache,                                                                                     
##        malaise}             => {fatigue}             0.06463415  0.9464286 0.06829268  2.410160   318
## [454] {fatigue,                                                                                      
##        headache}            => {malaise}             0.06463415  0.5760870 0.11219512  4.037533   318
## [455] {abdominal_pain,                                                                               
##        nausea}              => {fatigue}             0.06463415  0.5824176 0.11097561  1.483175   318
## [456] {abdominal_pain,                                                                               
##        fatigue}             => {nausea}              0.06463415  0.5760870 0.11219512  2.473253   318
## [457] {abdominal_pain,                                                                               
##        fatigue}             => {loss_of_appetite}    0.06463415  0.5760870 0.11219512  2.460371   318
## [458] {abdominal_pain,                                                                               
##        high_fever}          => {vomiting}            0.06463415  0.9464286 0.06829268  2.432826   318
## [459] {headache,                                                                                     
##        high_fever}          => {vomiting}            0.06463415  0.5760870 0.11219512  1.480850   318
## [460] {fatigue,                                                                                      
##        headache}            => {vomiting}            0.06463415  0.5760870 0.11219512  1.480850   318
## [461] {chest_pain,                                                                                   
##        cough,                                                                                        
##        phlegm}              => {chills}              0.06463415  0.9464286 0.06829268  5.835124   318
## [462] {chills,                                                                                       
##        cough,                                                                                        
##        phlegm}              => {chest_pain}          0.06463415  1.0000000 0.06463415  7.068966   318
## [463] {chest_pain,                                                                                   
##        chills,                                                                                       
##        phlegm}              => {cough}               0.06463415  0.9464286 0.06829268  8.256079   318
## [464] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough}               => {phlegm}              0.06463415  0.9814815 0.06585366 13.640929   318
## [465] {chest_pain,                                                                                   
##        cough,                                                                                        
##        phlegm}              => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [466] {cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {chest_pain}          0.06463415  1.0000000 0.06463415  7.068966   318
## [467] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        phlegm}              => {cough}               0.06463415  0.9464286 0.06829268  8.256079   318
## [468] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever}          => {phlegm}              0.06463415  0.9814815 0.06585366 13.640929   318
## [469] {chest_pain,                                                                                   
##        cough,                                                                                        
##        phlegm}              => {fatigue}             0.06463415  0.9464286 0.06829268  2.410160   318
## [470] {cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {chest_pain}          0.06463415  1.0000000 0.06463415  7.068966   318
## [471] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        phlegm}              => {cough}               0.06463415  0.9464286 0.06829268  8.256079   318
## [472] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue}             => {phlegm}              0.06463415  0.9814815 0.06585366 13.640929   318
## [473] {chest_pain,                                                                                   
##        chills,                                                                                       
##        phlegm}              => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [474] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        phlegm}              => {chills}              0.06463415  0.9464286 0.06829268  5.835124   318
## [475] {chills,                                                                                       
##        high_fever,                                                                                   
##        phlegm}              => {chest_pain}          0.06463415  1.0000000 0.06463415  7.068966   318
## [476] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever}          => {phlegm}              0.06463415  0.9814815 0.06585366 13.640929   318
## [477] {chest_pain,                                                                                   
##        chills,                                                                                       
##        phlegm}              => {fatigue}             0.06463415  0.9464286 0.06829268  2.410160   318
## [478] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        phlegm}              => {chills}              0.06463415  0.9464286 0.06829268  5.835124   318
## [479] {chills,                                                                                       
##        fatigue,                                                                                      
##        phlegm}              => {chest_pain}          0.06463415  1.0000000 0.06463415  7.068966   318
## [480] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue}             => {phlegm}              0.06463415  0.9814815 0.06585366 13.640929   318
## [481] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        phlegm}              => {fatigue}             0.06463415  0.9464286 0.06829268  2.410160   318
## [482] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        phlegm}              => {high_fever}          0.06463415  0.9464286 0.06829268  3.418817   318
## [483] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {chest_pain}          0.06463415  1.0000000 0.06463415  7.068966   318
## [484] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever}          => {phlegm}              0.06463415  0.9814815 0.06585366 13.640929   318
## [485] {high_fever,                                                                                   
##        swelled_lymph_nodes} => {fatigue}             0.06341463  0.9454545 0.06707317  2.407679   312
## [486] {fatigue,                                                                                      
##        swelled_lymph_nodes} => {high_fever}          0.06341463  0.9454545 0.06707317  3.415298   312
## [487] {dark_urine,                                                                                   
##        joint_pain}          => {abdominal_pain}      0.06341463  0.9629630 0.06585366  4.590870   312
## [488] {abdominal_pain,                                                                               
##        dark_urine}          => {joint_pain}          0.06341463  0.5714286 0.11097561  4.110276   312
## [489] {abdominal_pain,                                                                               
##        joint_pain}          => {dark_urine}          0.06341463  0.9454545 0.06707317  8.160766   312
## [490] {dark_urine,                                                                                   
##        joint_pain}          => {loss_of_appetite}    0.06341463  0.9629630 0.06585366  4.112654   312
## [491] {dark_urine,                                                                                   
##        loss_of_appetite}    => {joint_pain}          0.06341463  0.7123288 0.08902439  5.123768   312
## [492] {joint_pain,                                                                                   
##        loss_of_appetite}    => {dark_urine}          0.06341463  0.7027027 0.09024390  6.065434   312
## [493] {abdominal_pain,                                                                               
##        dark_urine}          => {nausea}              0.06341463  0.5714286 0.11097561  2.453254   312
## [494] {dark_urine,                                                                                   
##        nausea}              => {abdominal_pain}      0.06341463  0.9629630 0.06585366  4.590870   312
## [495] {abdominal_pain,                                                                               
##        nausea}              => {dark_urine}          0.06341463  0.5714286 0.11097561  4.932331   312
## [496] {dark_urine,                                                                                   
##        nausea}              => {loss_of_appetite}    0.06341463  0.9629630 0.06585366  4.112654   312
## [497] {dark_urine,                                                                                   
##        loss_of_appetite}    => {nausea}              0.06341463  0.7123288 0.08902439  3.058165   312
## [498] {dark_urine,                                                                                   
##        loss_of_appetite}    => {vomiting}            0.06341463  0.7123288 0.08902439  1.831065   312
## [499] {dark_urine,                                                                                   
##        vomiting}            => {loss_of_appetite}    0.06341463  0.7222222 0.08780488  3.084491   312
## [500] {dark_urine,                                                                                   
##        loss_of_appetite}    => {fatigue}             0.06341463  0.7123288 0.08902439  1.814005   312
## [501] {dark_urine,                                                                                   
##        fatigue}             => {loss_of_appetite}    0.06341463  0.7222222 0.08780488  3.084491   312
## [502] {chills,                                                                                       
##        cough}               => {malaise}             0.06341463  0.9629630 0.06585366  6.748971   312
## [503] {cough,                                                                                        
##        malaise}             => {chills}              0.06341463  0.9454545 0.06707317  5.829118   312
## [504] {chills,                                                                                       
##        malaise}             => {cough}               0.06341463  0.7123288 0.08902439  6.213932   312
## [505] {cough,                                                                                        
##        malaise}             => {high_fever}          0.06341463  0.9454545 0.06707317  3.415298   312
## [506] {cough,                                                                                        
##        high_fever}          => {malaise}             0.06341463  0.7323944 0.08658537  5.133020   312
## [507] {high_fever,                                                                                   
##        malaise}             => {cough}               0.06341463  0.5652174 0.11219512  4.930620   312
## [508] {cough,                                                                                        
##        malaise}             => {fatigue}             0.06341463  0.9454545 0.06707317  2.407679   312
## [509] {cough,                                                                                        
##        fatigue}             => {malaise}             0.06341463  0.7428571 0.08536585  5.206349   312
## [510] {joint_pain,                                                                                   
##        yellowish_skin}      => {abdominal_pain}      0.06341463  0.9629630 0.06585366  4.590870   312
## [511] {abdominal_pain,                                                                               
##        joint_pain}          => {yellowish_skin}      0.06341463  0.9454545 0.06707317  5.100478   312
## [512] {joint_pain,                                                                                   
##        yellowish_skin}      => {loss_of_appetite}    0.06341463  0.9629630 0.06585366  4.112654   312
## [513] {joint_pain,                                                                                   
##        loss_of_appetite}    => {yellowish_skin}      0.06341463  0.7027027 0.09024390  3.790896   312
## [514] {abdominal_pain,                                                                               
##        joint_pain}          => {nausea}              0.06341463  0.9454545 0.06707317  4.059020   312
## [515] {joint_pain,                                                                                   
##        nausea}              => {abdominal_pain}      0.06341463  0.7123288 0.08902439  3.395986   312
## [516] {abdominal_pain,                                                                               
##        nausea}              => {joint_pain}          0.06341463  0.5714286 0.11097561  4.110276   312
## [517] {abdominal_pain,                                                                               
##        joint_pain}          => {vomiting}            0.06341463  0.9454545 0.06707317  2.430322   312
## [518] {joint_pain,                                                                                   
##        vomiting}            => {abdominal_pain}      0.06341463  0.7222222 0.08780488  3.443152   312
## [519] {joint_pain,                                                                                   
##        nausea}              => {fatigue}             0.06341463  0.7123288 0.08902439  1.814005   312
## [520] {fatigue,                                                                                      
##        joint_pain}          => {nausea}              0.06341463  0.9629630 0.06585366  4.134187   312
## [521] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough}               => {malaise}             0.06341463  0.9629630 0.06585366  6.748971   312
## [522] {chest_pain,                                                                                   
##        cough,                                                                                        
##        malaise}             => {chills}              0.06341463  0.9454545 0.06707317  5.829118   312
## [523] {chills,                                                                                       
##        cough,                                                                                        
##        malaise}             => {chest_pain}          0.06341463  1.0000000 0.06341463  7.068966   312
## [524] {chest_pain,                                                                                   
##        chills,                                                                                       
##        malaise}             => {cough}               0.06341463  0.9454545 0.06707317  8.247582   312
## [525] {chest_pain,                                                                                   
##        cough,                                                                                        
##        malaise}             => {high_fever}          0.06341463  0.9454545 0.06707317  3.415298   312
## [526] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever}          => {malaise}             0.06341463  0.9629630 0.06585366  6.748971   312
## [527] {cough,                                                                                        
##        high_fever,                                                                                   
##        malaise}             => {chest_pain}          0.06341463  1.0000000 0.06341463  7.068966   312
## [528] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        malaise}             => {cough}               0.06341463  0.9454545 0.06707317  8.247582   312
## [529] {chest_pain,                                                                                   
##        cough,                                                                                        
##        malaise}             => {fatigue}             0.06341463  0.9454545 0.06707317  2.407679   312
## [530] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue}             => {malaise}             0.06341463  0.9629630 0.06585366  6.748971   312
## [531] {cough,                                                                                        
##        fatigue,                                                                                      
##        malaise}             => {chest_pain}          0.06341463  1.0000000 0.06341463  7.068966   312
## [532] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        malaise}             => {cough}               0.06341463  0.9454545 0.06707317  8.247582   312
## [533] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06341463  0.9629630 0.06585366  4.112654   312
## [534] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {abdominal_pain}      0.06341463  0.9629630 0.06585366  4.590870   312
## [535] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {yellowing_of_eyes}   0.06341463  0.9811321 0.06463415  5.915649   312
## [536] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {joint_pain}          0.06341463  0.5777778 0.10975610  4.155945   312
## [537] {chest_pain,                                                                                   
##        chills,                                                                                       
##        malaise}             => {high_fever}          0.06341463  0.9454545 0.06707317  3.415298   312
## [538] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever}          => {malaise}             0.06341463  0.9629630 0.06585366  6.748971   312
## [539] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        malaise}             => {chills}              0.06341463  0.9454545 0.06707317  5.829118   312
## [540] {chills,                                                                                       
##        high_fever,                                                                                   
##        malaise}             => {chest_pain}          0.06341463  0.7536232 0.08414634  5.327336   312
## [541] {chest_pain,                                                                                   
##        chills,                                                                                       
##        malaise}             => {fatigue}             0.06341463  0.9454545 0.06707317  2.407679   312
## [542] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue}             => {malaise}             0.06341463  0.9629630 0.06585366  6.748971   312
## [543] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        malaise}             => {chills}              0.06341463  0.9454545 0.06707317  5.829118   312
## [544] {chills,                                                                                       
##        fatigue,                                                                                      
##        malaise}             => {chest_pain}          0.06341463  0.7536232 0.08414634  5.327336   312
## [545] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        malaise}             => {fatigue}             0.06341463  0.9454545 0.06707317  2.407679   312
## [546] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        malaise}             => {high_fever}          0.06341463  0.9454545 0.06707317  3.415298   312
## [547] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever}          => {malaise}             0.06341463  0.9629630 0.06585366  6.748971   312
## [548] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise}             => {chest_pain}          0.06341463  0.5977011 0.10609756  4.225129   312
## [549] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {fatigue}             0.06341463  0.5777778 0.10975610  1.471360   312
## [550] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06341463  0.9629630 0.06585366  4.112654   312
## [551] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {abdominal_pain}      0.06341463  0.5842697 0.10853659  2.785472   312
## [552] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        loss_of_appetite}    => {yellowing_of_eyes}   0.06341463  0.9811321 0.06463415  5.915649   312
## [553] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {fatigue}             0.06341463  0.5777778 0.10975610  1.471360   312
## [554] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {vomiting}            0.06341463  0.5842697 0.10853659  1.501884   312
## [555] {fatigue,                                                                                      
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06341463  0.9811321 0.06463415  4.190252   312
## [556] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        vomiting}            => {yellowing_of_eyes}   0.06341463  0.7323944 0.08658537  4.415907   312
## [557] {chills,                                                                                       
##        headache,                                                                                     
##        nausea}              => {high_fever}          0.06341463  0.9629630 0.06585366  3.478545   312
## [558] {chills,                                                                                       
##        headache,                                                                                     
##        high_fever}          => {nausea}              0.06341463  0.7323944 0.08658537  3.144311   312
## [559] {chills,                                                                                       
##        high_fever,                                                                                   
##        nausea}              => {headache}            0.06341463  0.9629630 0.06585366  4.177935   312
## [560] {headache,                                                                                     
##        high_fever,                                                                                   
##        nausea}              => {chills}              0.06341463  0.9629630 0.06585366  5.937065   312
## [561] {chills,                                                                                       
##        headache,                                                                                     
##        high_fever}          => {fatigue}             0.06341463  0.7323944 0.08658537  1.865104   312
## [562] {chills,                                                                                       
##        fatigue,                                                                                      
##        headache}            => {high_fever}          0.06341463  0.9629630 0.06585366  3.478545   312
## [563] {chills,                                                                                       
##        fatigue,                                                                                      
##        high_fever}          => {headache}            0.06341463  0.5909091 0.10731707  2.563733   312
## [564] {fatigue,                                                                                      
##        headache,                                                                                     
##        high_fever}          => {chills}              0.06341463  0.7323944 0.08658537  4.515514   312
## [565] {high_fever,                                                                                   
##        loss_of_appetite,                                                                             
##        malaise}             => {fatigue}             0.06341463  0.9454545 0.06707317  2.407679   312
## [566] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        malaise}             => {high_fever}          0.06341463  0.7123288 0.08902439  2.573170   312
## [567] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise}             => {loss_of_appetite}    0.06341463  0.5977011 0.10609756  2.552682   312
## [568] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        loss_of_appetite}    => {malaise}             0.06341463  0.7323944 0.08658537  5.133020   312
## [569] {breathlessness,                                                                               
##        chest_pain}          => {sweating}            0.06219512  0.9272727 0.06707317  6.728882   306
## [570] {breathlessness,                                                                               
##        sweating}            => {chest_pain}          0.06219512  0.9807692 0.06341463  6.933024   306
## [571] {chest_pain,                                                                                   
##        sweating}            => {breathlessness}      0.06219512  0.9272727 0.06707317 10.138182   306
## [572] {itching,                                                                                      
##        yellowish_skin}      => {abdominal_pain}      0.06219512  0.9444444 0.06585366  4.502584   306
## [573] {abdominal_pain,                                                                               
##        itching}             => {yellowish_skin}      0.06219512  0.9444444 0.06585366  5.095029   306
## [574] {dark_urine,                                                                                   
##        joint_pain}          => {yellowish_skin}      0.06219512  0.9444444 0.06585366  5.095029   306
## [575] {dark_urine,                                                                                   
##        yellowish_skin}      => {joint_pain}          0.06219512  0.5666667 0.10975610  4.076023   306
## [576] {joint_pain,                                                                                   
##        yellowish_skin}      => {dark_urine}          0.06219512  0.9444444 0.06585366  8.152047   306
## [577] {dark_urine,                                                                                   
##        joint_pain}          => {nausea}              0.06219512  0.9444444 0.06585366  4.054683   306
## [578] {dark_urine,                                                                                   
##        nausea}              => {joint_pain}          0.06219512  0.9444444 0.06585366  6.793372   306
## [579] {joint_pain,                                                                                   
##        nausea}              => {dark_urine}          0.06219512  0.6986301 0.08902439  6.030281   306
## [580] {dark_urine,                                                                                   
##        joint_pain}          => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [581] {dark_urine,                                                                                   
##        vomiting}            => {joint_pain}          0.06219512  0.7083333 0.08780488  5.095029   306
## [582] {joint_pain,                                                                                   
##        vomiting}            => {dark_urine}          0.06219512  0.7083333 0.08780488  6.114035   306
## [583] {dark_urine,                                                                                   
##        yellowish_skin}      => {nausea}              0.06219512  0.5666667 0.10975610  2.432810   306
## [584] {dark_urine,                                                                                   
##        nausea}              => {yellowish_skin}      0.06219512  0.9444444 0.06585366  5.095029   306
## [585] {nausea,                                                                                       
##        yellowish_skin}      => {dark_urine}          0.06219512  0.5666667 0.10975610  4.891228   306
## [586] {dark_urine,                                                                                   
##        nausea}              => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [587] {dark_urine,                                                                                   
##        vomiting}            => {nausea}              0.06219512  0.7083333 0.08780488  3.041012   306
## [588] {dark_urine,                                                                                   
##        vomiting}            => {fatigue}             0.06219512  0.7083333 0.08780488  1.803830   306
## [589] {dark_urine,                                                                                   
##        fatigue}             => {vomiting}            0.06219512  0.7083333 0.08780488  1.820794   306
## [590] {chills,                                                                                       
##        cough}               => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [591] {cough,                                                                                        
##        high_fever}          => {chills}              0.06219512  0.7183099 0.08658537  4.428677   306
## [592] {chills,                                                                                       
##        cough}               => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [593] {cough,                                                                                        
##        fatigue}             => {chills}              0.06219512  0.7285714 0.08536585  4.491944   306
## [594] {chills,                                                                                       
##        fatigue}             => {cough}               0.06219512  0.5543478 0.11219512  4.835800   306
## [595] {joint_pain,                                                                                   
##        yellowish_skin}      => {nausea}              0.06219512  0.9444444 0.06585366  4.054683   306
## [596] {joint_pain,                                                                                   
##        nausea}              => {yellowish_skin}      0.06219512  0.6986301 0.08902439  3.768926   306
## [597] {nausea,                                                                                       
##        yellowish_skin}      => {joint_pain}          0.06219512  0.5666667 0.10975610  4.076023   306
## [598] {joint_pain,                                                                                   
##        yellowish_skin}      => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [599] {joint_pain,                                                                                   
##        vomiting}            => {yellowish_skin}      0.06219512  0.7083333 0.08780488  3.821272   306
## [600] {joint_pain,                                                                                   
##        vomiting}            => {fatigue}             0.06219512  0.7083333 0.08780488  1.803830   306
## [601] {fatigue,                                                                                      
##        joint_pain}          => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [602] {chills,                                                                                       
##        sweating}            => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [603] {high_fever,                                                                                   
##        sweating}            => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [604] {nausea,                                                                                       
##        yellowish_skin}      => {fatigue}             0.06219512  0.5666667 0.10975610  1.443064   306
## [605] {fatigue,                                                                                      
##        yellowish_skin}      => {nausea}              0.06219512  0.5666667 0.10975610  2.432810   306
## [606] {fatigue,                                                                                      
##        yellowish_skin}      => {vomiting}            0.06219512  0.5666667 0.10975610  1.456635   306
## [607] {nausea,                                                                                       
##        yellowing_of_eyes}   => {fatigue}             0.06219512  0.5604396 0.11097561  1.427206   306
## [608] {fatigue,                                                                                      
##        yellowing_of_eyes}   => {nausea}              0.06219512  0.5543478 0.11219512  2.379923   306
## [609] {high_fever,                                                                                   
##        malaise,                                                                                      
##        swelled_lymph_nodes} => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [610] {fatigue,                                                                                      
##        malaise,                                                                                      
##        swelled_lymph_nodes} => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [611] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        swelled_lymph_nodes} => {malaise}             0.06219512  0.9807692 0.06341463  6.873767   306
## [612] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise}             => {swelled_lymph_nodes} 0.06219512  0.5862069 0.10609756  8.287753   306
## [613] {chills,                                                                                       
##        cough,                                                                                        
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [614] {cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [615] {chills,                                                                                       
##        malaise,                                                                                      
##        phlegm}              => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [616] {chills,                                                                                       
##        cough,                                                                                        
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [617] {cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [618] {cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [619] {high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [620] {cough,                                                                                        
##        high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [621] {cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [622] {cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [623] {fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [624] {cough,                                                                                        
##        fatigue,                                                                                      
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [625] {chills,                                                                                       
##        malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [626] {chills,                                                                                       
##        high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [627] {high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [628] {chills,                                                                                       
##        high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06219512  0.7391304 0.08414634 10.272660   306
## [629] {chills,                                                                                       
##        malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [630] {chills,                                                                                       
##        fatigue,                                                                                      
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [631] {fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [632] {chills,                                                                                       
##        fatigue,                                                                                      
##        malaise}             => {phlegm}              0.06219512  0.7391304 0.08414634 10.272660   306
## [633] {high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [634] {fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [635] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [636] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06219512  0.5862069 0.10609756  8.147282   306
## [637] {chills,                                                                                       
##        headache,                                                                                     
##        muscle_pain}         => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [638] {chills,                                                                                       
##        high_fever,                                                                                   
##        muscle_pain}         => {headache}            0.06219512  0.9622642 0.06463415  4.174903   306
## [639] {headache,                                                                                     
##        high_fever,                                                                                   
##        muscle_pain}         => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [640] {chills,                                                                                       
##        headache,                                                                                     
##        high_fever}          => {muscle_pain}         0.06219512  0.7183099 0.08658537  7.455874   306
## [641] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {abdominal_pain}      0.06219512  0.9622642 0.06463415  4.587538   306
## [642] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        joint_pain}          => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [643] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowing_of_eyes}   => {joint_pain}          0.06219512  0.7083333 0.08780488  5.095029   306
## [644] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.9444444 0.06585366  8.152047   306
## [645] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06219512  0.9622642 0.06463415  4.109670   306
## [646] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [647] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {joint_pain}          0.06219512  0.7083333 0.08780488  5.095029   306
## [648] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.9444444 0.06585366  8.152047   306
## [649] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowing_of_eyes}   => {nausea}              0.06219512  0.7083333 0.08780488  3.041012   306
## [650] {dark_urine,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {abdominal_pain}      0.06219512  0.9622642 0.06463415  4.587538   306
## [651] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        nausea}              => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [652] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.7183099 0.08658537  6.200148   306
## [653] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowing_of_eyes}   => {vomiting}            0.06219512  0.7083333 0.08780488  1.820794   306
## [654] {dark_urine,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {abdominal_pain}      0.06219512  0.9622642 0.06463415  4.587538   306
## [655] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        vomiting}            => {yellowing_of_eyes}   0.06219512  0.7391304 0.08414634  4.456522   306
## [656] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.7183099 0.08658537  6.200148   306
## [657] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        yellowing_of_eyes}   => {fatigue}             0.06219512  0.7083333 0.08780488  1.803830   306
## [658] {dark_urine,                                                                                   
##        fatigue,                                                                                      
##        yellowing_of_eyes}   => {abdominal_pain}      0.06219512  0.9622642 0.06463415  4.587538   306
## [659] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        fatigue}             => {yellowing_of_eyes}   0.06219512  0.7391304 0.08414634  4.456522   306
## [660] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.9444444 0.06585366  8.152047   306
## [661] {dark_urine,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06219512  0.9622642 0.06463415  4.109670   306
## [662] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {nausea}              0.06219512  0.7083333 0.08780488  3.041012   306
## [663] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        nausea}              => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [664] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.5862069 0.10609756  5.059891   306
## [665] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {vomiting}            0.06219512  0.7083333 0.08780488  1.820794   306
## [666] {dark_urine,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06219512  0.9622642 0.06463415  4.109670   306
## [667] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        vomiting}            => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [668] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.5666667 0.10975610  4.891228   306
## [669] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {fatigue}             0.06219512  0.7083333 0.08780488  1.803830   306
## [670] {dark_urine,                                                                                   
##        fatigue,                                                                                      
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06219512  0.9622642 0.06463415  4.109670   306
## [671] {dark_urine,                                                                                   
##        fatigue,                                                                                      
##        loss_of_appetite}    => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [672] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {dark_urine}          0.06219512  0.5730337 0.10853659  4.946186   306
## [673] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough}               => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [674] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever}          => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [675] {chills,                                                                                       
##        cough,                                                                                        
##        high_fever}          => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [676] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever}          => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [677] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough}               => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [678] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue}             => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [679] {chills,                                                                                       
##        cough,                                                                                        
##        fatigue}             => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [680] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue}             => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [681] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever}          => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [682] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue}             => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [683] {cough,                                                                                        
##        fatigue,                                                                                      
##        high_fever}          => {chest_pain}          0.06219512  0.7727273 0.08048780  5.462382   306
## [684] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever}          => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [685] {joint_pain,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.06219512  0.9622642 0.06463415  4.587538   306
## [686] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        yellowish_skin}      => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [687] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {yellowish_skin}      0.06219512  0.9444444 0.06585366  5.095029   306
## [688] {abdominal_pain,                                                                               
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {joint_pain}          0.06219512  0.5730337 0.10853659  4.121821   306
## [689] {joint_pain,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {loss_of_appetite}    0.06219512  0.9622642 0.06463415  4.109670   306
## [690] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [691] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {yellowish_skin}      0.06219512  0.9444444 0.06585366  5.095029   306
## [692] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {nausea}              0.06219512  0.9444444 0.06585366  4.054683   306
## [693] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {abdominal_pain}      0.06219512  0.9622642 0.06463415  4.587538   306
## [694] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        nausea}              => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [695] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {joint_pain}          0.06219512  0.7183099 0.08658537  5.166790   306
## [696] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [697] {joint_pain,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {abdominal_pain}      0.06219512  0.9622642 0.06463415  4.587538   306
## [698] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        vomiting}            => {yellowing_of_eyes}   0.06219512  0.9807692 0.06341463  5.913462   306
## [699] {abdominal_pain,                                                                               
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {joint_pain}          0.06219512  0.7183099 0.08658537  5.166790   306
## [700] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06219512  0.9622642 0.06463415  4.109670   306
## [701] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {nausea}              0.06219512  0.9444444 0.06585366  4.054683   306
## [702] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        nausea}              => {yellowing_of_eyes}   0.06219512  0.7183099 0.08658537  4.330986   306
## [703] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {joint_pain}          0.06219512  0.5862069 0.10609756  4.216576   306
## [704] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowing_of_eyes}   => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [705] {joint_pain,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {loss_of_appetite}    0.06219512  0.9622642 0.06463415  4.109670   306
## [706] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        vomiting}            => {yellowing_of_eyes}   0.06219512  0.7285714 0.08536585  4.392857   306
## [707] {loss_of_appetite,                                                                             
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {joint_pain}          0.06219512  0.5666667 0.10975610  4.076023   306
## [708] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        nausea}              => {fatigue}             0.06219512  0.7183099 0.08658537  1.829236   306
## [709] {fatigue,                                                                                      
##        joint_pain,                                                                                   
##        nausea}              => {loss_of_appetite}    0.06219512  0.9807692 0.06341463  4.188702   306
## [710] {fatigue,                                                                                      
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {nausea}              0.06219512  0.9622642 0.06463415  4.131186   306
## [711] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        nausea}              => {joint_pain}          0.06219512  0.7183099 0.08658537  5.166790   306
## [712] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever}          => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [713] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue}             => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [714] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever}          => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [715] {chills,                                                                                       
##        fatigue,                                                                                      
##        high_fever}          => {chest_pain}          0.06219512  0.5795455 0.10731707  4.096787   306
## [716] {abdominal_pain,                                                                               
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {fatigue}             0.06219512  0.5730337 0.10853659  1.459278   306
## [717] {fatigue,                                                                                      
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {abdominal_pain}      0.06219512  0.7391304 0.08414634  3.523761   306
## [718] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        yellowish_skin}      => {yellowing_of_eyes}   0.06219512  0.7391304 0.08414634  4.456522   306
## [719] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        yellowing_of_eyes}   => {yellowish_skin}      0.06219512  0.9444444 0.06585366  5.095029   306
## [720] {chills,                                                                                       
##        headache,                                                                                     
##        nausea}              => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [721] {chills,                                                                                       
##        headache,                                                                                     
##        vomiting}            => {nausea}              0.06219512  0.9622642 0.06463415  4.131186   306
## [722] {chills,                                                                                       
##        nausea,                                                                                       
##        vomiting}            => {headache}            0.06219512  0.9622642 0.06463415  4.174903   306
## [723] {headache,                                                                                     
##        nausea,                                                                                       
##        vomiting}            => {chills}              0.06219512  0.5862069 0.10609756  3.614208   306
## [724] {chills,                                                                                       
##        headache,                                                                                     
##        high_fever}          => {vomiting}            0.06219512  0.7183099 0.08658537  1.846439   306
## [725] {chills,                                                                                       
##        headache,                                                                                     
##        vomiting}            => {high_fever}          0.06219512  0.9622642 0.06463415  3.476020   306
## [726] {chills,                                                                                       
##        high_fever,                                                                                   
##        vomiting}            => {headache}            0.06219512  0.7285714 0.08536585  3.160998   306
## [727] {headache,                                                                                     
##        high_fever,                                                                                   
##        vomiting}            => {chills}              0.06219512  0.9622642 0.06463415  5.932756   306
## [728] {chills,                                                                                       
##        high_fever,                                                                                   
##        nausea}              => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [729] {chills,                                                                                       
##        nausea,                                                                                       
##        vomiting}            => {high_fever}          0.06219512  0.9622642 0.06463415  3.476020   306
## [730] {chills,                                                                                       
##        high_fever,                                                                                   
##        vomiting}            => {nausea}              0.06219512  0.7285714 0.08536585  3.127898   306
## [731] {high_fever,                                                                                   
##        nausea,                                                                                       
##        vomiting}            => {chills}              0.06219512  0.7285714 0.08536585  4.491944   306
## [732] {chills,                                                                                       
##        high_fever,                                                                                   
##        vomiting}            => {fatigue}             0.06219512  0.7285714 0.08536585  1.855368   306
## [733] {chills,                                                                                       
##        fatigue,                                                                                      
##        high_fever}          => {vomiting}            0.06219512  0.5795455 0.10731707  1.489741   306
## [734] {chills,                                                                                       
##        fatigue,                                                                                      
##        vomiting}            => {high_fever}          0.06219512  0.9622642 0.06463415  3.476020   306
## [735] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        vomiting}            => {chills}              0.06219512  0.5862069 0.10609756  3.614208   306
## [736] {abdominal_pain,                                                                               
##        high_fever,                                                                                   
##        vomiting}            => {fatigue}             0.06219512  0.9622642 0.06463415  2.450486   306
## [737] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        high_fever}          => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [738] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        vomiting}            => {high_fever}          0.06219512  0.7285714 0.08536585  2.631844   306
## [739] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        vomiting}            => {abdominal_pain}      0.06219512  0.5862069 0.10609756  2.794707   306
## [740] {headache,                                                                                     
##        high_fever,                                                                                   
##        nausea}              => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [741] {headache,                                                                                     
##        nausea,                                                                                       
##        vomiting}            => {high_fever}          0.06219512  0.5862069 0.10609756  2.117576   306
## [742] {headache,                                                                                     
##        high_fever,                                                                                   
##        vomiting}            => {nausea}              0.06219512  0.9622642 0.06463415  4.131186   306
## [743] {high_fever,                                                                                   
##        nausea,                                                                                       
##        vomiting}            => {headache}            0.06219512  0.7285714 0.08536585  3.160998   306
## [744] {headache,                                                                                     
##        nausea,                                                                                       
##        vomiting}            => {fatigue}             0.06219512  0.5862069 0.10609756  1.492825   306
## [745] {fatigue,                                                                                      
##        headache,                                                                                     
##        nausea}              => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [746] {fatigue,                                                                                      
##        headache,                                                                                     
##        vomiting}            => {nausea}              0.06219512  0.9622642 0.06463415  4.131186   306
## [747] {fatigue,                                                                                      
##        nausea,                                                                                       
##        vomiting}            => {headache}            0.06219512  0.5862069 0.10609756  2.543332   306
## [748] {loss_of_appetite,                                                                             
##        nausea,                                                                                       
##        vomiting}            => {fatigue}             0.06219512  0.5795455 0.10731707  1.475861   306
## [749] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        nausea}              => {vomiting}            0.06219512  0.7183099 0.08658537  1.846439   306
## [750] {fatigue,                                                                                      
##        nausea,                                                                                       
##        vomiting}            => {loss_of_appetite}    0.06219512  0.5862069 0.10609756  2.503592   306
## [751] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        vomiting}            => {nausea}              0.06219512  0.7183099 0.08658537  3.083843   306
## [752] {high_fever,                                                                                   
##        nausea,                                                                                       
##        vomiting}            => {fatigue}             0.06219512  0.7285714 0.08536585  1.855368   306
## [753] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        nausea}              => {vomiting}            0.06219512  0.9444444 0.06585366  2.427726   306
## [754] {fatigue,                                                                                      
##        nausea,                                                                                       
##        vomiting}            => {high_fever}          0.06219512  0.5862069 0.10609756  2.117576   306
## [755] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        vomiting}            => {nausea}              0.06219512  0.5862069 0.10609756  2.516700   306
## [756] {high_fever,                                                                                   
##        loss_of_appetite,                                                                             
##        vomiting}            => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [757] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        loss_of_appetite}    => {vomiting}            0.06219512  0.7183099 0.08658537  1.846439   306
## [758] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        vomiting}            => {high_fever}          0.06219512  0.7183099 0.08658537  2.594776   306
## [759] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        vomiting}            => {loss_of_appetite}    0.06219512  0.5862069 0.10609756  2.503592   306
## [760] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough,                                                                                        
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [761] {chest_pain,                                                                                   
##        cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [762] {chills,                                                                                       
##        cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [763] {chest_pain,                                                                                   
##        chills,                                                                                       
##        malaise,                                                                                      
##        phlegm}              => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [764] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough,                                                                                        
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [765] {chest_pain,                                                                                   
##        cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [766] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [767] {cough,                                                                                        
##        high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [768] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [769] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [770] {chest_pain,                                                                                   
##        cough,                                                                                        
##        malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [771] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [772] {cough,                                                                                        
##        fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [773] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {cough}               0.06219512  0.9444444 0.06585366  8.238771   306
## [774] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue,                                                                                      
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [775] {chest_pain,                                                                                   
##        chills,                                                                                       
##        malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [776] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [777] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [778] {chills,                                                                                       
##        high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [779] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [780] {chest_pain,                                                                                   
##        chills,                                                                                       
##        malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [781] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue,                                                                                      
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [782] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {chills}              0.06219512  0.9444444 0.06585366  5.822891   306
## [783] {chills,                                                                                       
##        fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [784] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue,                                                                                      
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [785] {chest_pain,                                                                                   
##        high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {fatigue}             0.06219512  0.9444444 0.06585366  2.405107   306
## [786] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        malaise,                                                                                      
##        phlegm}              => {high_fever}          0.06219512  0.9444444 0.06585366  3.411650   306
## [787] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {malaise}             0.06219512  0.9622642 0.06463415  6.744074   306
## [788] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise,                                                                                      
##        phlegm}              => {chest_pain}          0.06219512  1.0000000 0.06219512  7.068966   306
## [789] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise}             => {phlegm}              0.06219512  0.9807692 0.06341463 13.631030   306
## [790] {breathlessness,                                                                               
##        cough}               => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [791] {breathlessness,                                                                               
##        high_fever}          => {cough}               0.06097561  0.9259259 0.06585366  8.077226   300
## [792] {cough,                                                                                        
##        high_fever}          => {breathlessness}      0.06097561  0.7042254 0.08658537  7.699531   300
## [793] {breathlessness,                                                                               
##        high_fever}          => {fatigue}             0.06097561  0.9259259 0.06585366  2.357948   300
## [794] {breathlessness,                                                                               
##        fatigue}             => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [795] {diarrhoea,                                                                                    
##        nausea}              => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [796] {diarrhoea,                                                                                    
##        vomiting}            => {nausea}              0.06097561  0.7142857 0.08536585  3.066567   300
## [797] {chills,                                                                                       
##        cough,                                                                                        
##        phlegm}              => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [798] {cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {chills}              0.06097561  0.9433962 0.06463415  5.816428   300
## [799] {chills,                                                                                       
##        high_fever,                                                                                   
##        phlegm}              => {cough}               0.06097561  0.9433962 0.06463415  8.229627   300
## [800] {chills,                                                                                       
##        cough,                                                                                        
##        high_fever}          => {phlegm}              0.06097561  0.9803922 0.06219512 13.625789   300
## [801] {chills,                                                                                       
##        cough,                                                                                        
##        phlegm}              => {fatigue}             0.06097561  0.9433962 0.06463415  2.402438   300
## [802] {cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {chills}              0.06097561  0.9433962 0.06463415  5.816428   300
## [803] {chills,                                                                                       
##        fatigue,                                                                                      
##        phlegm}              => {cough}               0.06097561  0.9433962 0.06463415  8.229627   300
## [804] {chills,                                                                                       
##        cough,                                                                                        
##        fatigue}             => {phlegm}              0.06097561  0.9803922 0.06219512 13.625789   300
## [805] {cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {fatigue}             0.06097561  0.9433962 0.06463415  2.402438   300
## [806] {cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [807] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {cough}               0.06097561  0.9433962 0.06463415  8.229627   300
## [808] {cough,                                                                                        
##        fatigue,                                                                                      
##        high_fever}          => {phlegm}              0.06097561  0.7575758 0.08048780 10.529019   300
## [809] {chills,                                                                                       
##        high_fever,                                                                                   
##        phlegm}              => {fatigue}             0.06097561  0.9433962 0.06463415  2.402438   300
## [810] {chills,                                                                                       
##        fatigue,                                                                                      
##        phlegm}              => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [811] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {chills}              0.06097561  0.9433962 0.06463415  5.816428   300
## [812] {chills,                                                                                       
##        fatigue,                                                                                      
##        high_fever}          => {phlegm}              0.06097561  0.5681818 0.10731707  7.896764   300
## [813] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        yellowish_skin}      => {yellowing_of_eyes}   0.06097561  0.9803922 0.06219512  5.911188   300
## [814] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [815] {dark_urine,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {joint_pain}          0.06097561  0.7042254 0.08658537  5.065481   300
## [816] {joint_pain,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.06097561  0.9433962 0.06463415  8.142999   300
## [817] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {nausea}              0.06097561  0.9433962 0.06463415  4.050183   300
## [818] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        nausea}              => {yellowing_of_eyes}   0.06097561  0.9803922 0.06219512  5.911188   300
## [819] {dark_urine,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {joint_pain}          0.06097561  0.9433962 0.06463415  6.785833   300
## [820] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {dark_urine}          0.06097561  0.9433962 0.06463415  8.142999   300
## [821] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        yellowing_of_eyes}   => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [822] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        vomiting}            => {yellowing_of_eyes}   0.06097561  0.9803922 0.06219512  5.911188   300
## [823] {dark_urine,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {joint_pain}          0.06097561  0.9433962 0.06463415  6.785833   300
## [824] {joint_pain,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {dark_urine}          0.06097561  0.9433962 0.06463415  8.142999   300
## [825] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        joint_pain}          => {loss_of_appetite}    0.06097561  0.9615385 0.06341463  4.106571   300
## [826] {dark_urine,                                                                                   
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {abdominal_pain}      0.06097561  0.9615385 0.06341463  4.584079   300
## [827] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite}    => {joint_pain}          0.06097561  0.7142857 0.08536585  5.137845   300
## [828] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {dark_urine}          0.06097561  0.9433962 0.06463415  8.142999   300
## [829] {dark_urine,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.06097561  0.7042254 0.08658537  3.023376   300
## [830] {dark_urine,                                                                                   
##        nausea,                                                                                       
##        yellowish_skin}      => {yellowing_of_eyes}   0.06097561  0.9803922 0.06219512  5.911188   300
## [831] {dark_urine,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [832] {nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.06097561  0.5813953 0.10487805  5.018360   300
## [833] {dark_urine,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.06097561  0.7042254 0.08658537  1.810234   300
## [834] {dark_urine,                                                                                   
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.06097561  0.7352941 0.08292683  4.433391   300
## [835] {dark_urine,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [836] {vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.06097561  0.7142857 0.08536585  6.165414   300
## [837] {dark_urine,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {fatigue}             0.06097561  0.7042254 0.08658537  1.793369   300
## [838] {dark_urine,                                                                                   
##        fatigue,                                                                                      
##        yellowish_skin}      => {yellowing_of_eyes}   0.06097561  0.7352941 0.08292683  4.433391   300
## [839] {dark_urine,                                                                                   
##        fatigue,                                                                                      
##        yellowing_of_eyes}   => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [840] {fatigue,                                                                                      
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {dark_urine}          0.06097561  0.7246377 0.08414634  6.254767   300
## [841] {dark_urine,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [842] {dark_urine,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {nausea}              0.06097561  0.9433962 0.06463415  4.050183   300
## [843] {dark_urine,                                                                                   
##        nausea,                                                                                       
##        vomiting}            => {yellowing_of_eyes}   0.06097561  0.9803922 0.06219512  5.911188   300
## [844] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {dark_urine}          0.06097561  0.7142857 0.08536585  6.165414   300
## [845] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        nausea}              => {loss_of_appetite}    0.06097561  0.9615385 0.06341463  4.106571   300
## [846] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite}    => {nausea}              0.06097561  0.7142857 0.08536585  3.066567   300
## [847] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        nausea}              => {abdominal_pain}      0.06097561  0.9615385 0.06341463  4.584079   300
## [848] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea}              => {dark_urine}          0.06097561  0.7142857 0.08536585  6.165414   300
## [849] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite}    => {vomiting}            0.06097561  0.7142857 0.08536585  1.836095   300
## [850] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        vomiting}            => {loss_of_appetite}    0.06097561  0.7246377 0.08414634  3.094807   300
## [851] {dark_urine,                                                                                   
##        loss_of_appetite,                                                                             
##        vomiting}            => {abdominal_pain}      0.06097561  0.9615385 0.06341463  4.584079   300
## [852] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting}            => {dark_urine}          0.06097561  0.5813953 0.10487805  5.018360   300
## [853] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        loss_of_appetite}    => {fatigue}             0.06097561  0.7142857 0.08536585  1.818988   300
## [854] {abdominal_pain,                                                                               
##        dark_urine,                                                                                   
##        fatigue}             => {loss_of_appetite}    0.06097561  0.7246377 0.08414634  3.094807   300
## [855] {dark_urine,                                                                                   
##        fatigue,                                                                                      
##        loss_of_appetite}    => {abdominal_pain}      0.06097561  0.9615385 0.06341463  4.584079   300
## [856] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        loss_of_appetite}    => {dark_urine}          0.06097561  0.9433962 0.06463415  8.142999   300
## [857] {joint_pain,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {nausea}              0.06097561  0.9433962 0.06463415  4.050183   300
## [858] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        yellowish_skin}      => {yellowing_of_eyes}   0.06097561  0.9803922 0.06219512  5.911188   300
## [859] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [860] {nausea,                                                                                       
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {joint_pain}          0.06097561  0.5813953 0.10487805  4.181967   300
## [861] {joint_pain,                                                                                   
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [862] {joint_pain,                                                                                   
##        vomiting,                                                                                     
##        yellowish_skin}      => {yellowing_of_eyes}   0.06097561  0.9803922 0.06219512  5.911188   300
## [863] {joint_pain,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [864] {vomiting,                                                                                     
##        yellowing_of_eyes,                                                                            
##        yellowish_skin}      => {joint_pain}          0.06097561  0.7142857 0.08536585  5.137845   300
## [865] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        yellowish_skin}      => {loss_of_appetite}    0.06097561  0.9615385 0.06341463  4.106571   300
## [866] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {abdominal_pain}      0.06097561  0.9615385 0.06341463  4.584079   300
## [867] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [868] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {joint_pain}          0.06097561  0.5747126 0.10609756  4.133898   300
## [869] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        yellowing_of_eyes}   => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [870] {joint_pain,                                                                                   
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {nausea}              0.06097561  0.9433962 0.06463415  4.050183   300
## [871] {joint_pain,                                                                                   
##        nausea,                                                                                       
##        vomiting}            => {yellowing_of_eyes}   0.06097561  0.7246377 0.08414634  4.369139   300
## [872] {nausea,                                                                                       
##        vomiting,                                                                                     
##        yellowing_of_eyes}   => {joint_pain}          0.06097561  0.7142857 0.08536585  5.137845   300
## [873] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        nausea}              => {loss_of_appetite}    0.06097561  0.9615385 0.06341463  4.106571   300
## [874] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {nausea}              0.06097561  0.9433962 0.06463415  4.050183   300
## [875] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        nausea}              => {abdominal_pain}      0.06097561  0.7042254 0.08658537  3.357353   300
## [876] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        nausea}              => {joint_pain}          0.06097561  0.7142857 0.08536585  5.137845   300
## [877] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [878] {abdominal_pain,                                                                               
##        joint_pain,                                                                                   
##        vomiting}            => {loss_of_appetite}    0.06097561  0.9615385 0.06341463  4.106571   300
## [879] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        vomiting}            => {abdominal_pain}      0.06097561  0.7142857 0.08536585  3.405316   300
## [880] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        vomiting}            => {joint_pain}          0.06097561  0.5813953 0.10487805  4.181967   300
## [881] {joint_pain,                                                                                   
##        loss_of_appetite,                                                                             
##        vomiting}            => {fatigue}             0.06097561  0.7142857 0.08536585  1.818988   300
## [882] {fatigue,                                                                                      
##        joint_pain,                                                                                   
##        loss_of_appetite}    => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [883] {fatigue,                                                                                      
##        joint_pain,                                                                                   
##        vomiting}            => {loss_of_appetite}    0.06097561  0.9803922 0.06219512  4.187092   300
## [884] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        vomiting}            => {joint_pain}          0.06097561  0.7042254 0.08658537  5.065481   300
## [885] {abdominal_pain,                                                                               
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {fatigue}             0.06097561  0.5747126 0.10609756  1.463554   300
## [886] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        yellowish_skin}      => {loss_of_appetite}    0.06097561  0.7246377 0.08414634  3.094807   300
## [887] {fatigue,                                                                                      
##        loss_of_appetite,                                                                             
##        yellowish_skin}      => {abdominal_pain}      0.06097561  0.7246377 0.08414634  3.454668   300
## [888] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        loss_of_appetite}    => {yellowish_skin}      0.06097561  0.9433962 0.06463415  5.089374   300
## [889] {headache,                                                                                     
##        high_fever,                                                                                   
##        malaise}             => {fatigue}             0.06097561  0.9433962 0.06463415  2.402438   300
## [890] {fatigue,                                                                                      
##        headache,                                                                                     
##        malaise}             => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [891] {fatigue,                                                                                      
##        high_fever,                                                                                   
##        malaise}             => {headache}            0.06097561  0.5747126 0.10609756  2.493462   300
## [892] {fatigue,                                                                                      
##        headache,                                                                                     
##        high_fever}          => {malaise}             0.06097561  0.7042254 0.08658537  4.935596   300
## [893] {abdominal_pain,                                                                               
##        nausea,                                                                                       
##        vomiting}            => {fatigue}             0.06097561  0.5813953 0.10487805  1.480572   300
## [894] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        nausea}              => {vomiting}            0.06097561  0.9433962 0.06463415  2.425031   300
## [895] {abdominal_pain,                                                                               
##        fatigue,                                                                                      
##        vomiting}            => {nausea}              0.06097561  0.7142857 0.08536585  3.066567   300
## [896] {fatigue,                                                                                      
##        nausea,                                                                                       
##        vomiting}            => {abdominal_pain}      0.06097561  0.5747126 0.10609756  2.739909   300
## [897] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough,                                                                                        
##        phlegm}              => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [898] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {chills}              0.06097561  0.9433962 0.06463415  5.816428   300
## [899] {chills,                                                                                       
##        cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {chest_pain}          0.06097561  1.0000000 0.06097561  7.068966   300
## [900] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever,                                                                                   
##        phlegm}              => {cough}               0.06097561  0.9433962 0.06463415  8.229627   300
## [901] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough,                                                                                        
##        high_fever}          => {phlegm}              0.06097561  0.9803922 0.06219512 13.625789   300
## [902] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough,                                                                                        
##        phlegm}              => {fatigue}             0.06097561  0.9433962 0.06463415  2.402438   300
## [903] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {chills}              0.06097561  0.9433962 0.06463415  5.816428   300
## [904] {chills,                                                                                       
##        cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {chest_pain}          0.06097561  1.0000000 0.06097561  7.068966   300
## [905] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue,                                                                                      
##        phlegm}              => {cough}               0.06097561  0.9433962 0.06463415  8.229627   300
## [906] {chest_pain,                                                                                   
##        chills,                                                                                       
##        cough,                                                                                        
##        fatigue}             => {phlegm}              0.06097561  0.9803922 0.06219512 13.625789   300
## [907] {chest_pain,                                                                                   
##        cough,                                                                                        
##        high_fever,                                                                                   
##        phlegm}              => {fatigue}             0.06097561  0.9433962 0.06463415  2.402438   300
## [908] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue,                                                                                      
##        phlegm}              => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [909] {cough,                                                                                        
##        fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {chest_pain}          0.06097561  1.0000000 0.06097561  7.068966   300
## [910] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {cough}               0.06097561  0.9433962 0.06463415  8.229627   300
## [911] {chest_pain,                                                                                   
##        cough,                                                                                        
##        fatigue,                                                                                      
##        high_fever}          => {phlegm}              0.06097561  0.9803922 0.06219512 13.625789   300
## [912] {chest_pain,                                                                                   
##        chills,                                                                                       
##        high_fever,                                                                                   
##        phlegm}              => {fatigue}             0.06097561  0.9433962 0.06463415  2.402438   300
## [913] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue,                                                                                      
##        phlegm}              => {high_fever}          0.06097561  0.9433962 0.06463415  3.407863   300
## [914] {chest_pain,                                                                                   
##        fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {chills}              0.06097561  0.9433962 0.06463415  5.816428   300
## [915] {chills,                                                                                       
##        fatigue,                                                                                      
##        high_fever,                                                                                   
##        phlegm}              => {chest_pain}          0.06097561  1.0000000 0.06097561  7.068966   300
## [916] {chest_pain,                                                                                   
##        chills,                                                                                       
##        fatigue,                                                                                      
##        high_fever}          => {phlegm}              0.06097561  0.9803922 0.06219512 13.625789   300
#plot(sorted_rules[1:20], method = 'graph', engine = 'interactive', shading = "confidence")
plot(sorted_rules[1:20], method = "grouped matrix", engine = "htmlwidget")
plot(sorted_rules[1:20], method = "matrix", engine = "htmlwidget")
plot(sorted_rules[1:20], method = "graph", engine = "htmlwidget", data=trans)